The survival of humanity we need material support, butalso needs the protection of environmental resources. And material needs of the continuous output and environmental resources in order to ensure continuous supply, the sustainable survival of human resources must be sustainable and the environment accompanied by running. The proposed concept of sustainable development requires that we must change the past, the use of resources and strive to improve the efficient use of resources and at the same time the problem is due to environmental resources and economic activities associated with, the solution can only start from the economic activities in the economic in the development of resources to solve environmental problems, for the more backward areas should be.The EKC Curve suggests that environmental resource and that a relationship exists between; pure rationality of the market, institutional , Coase’s theory of property rights from their own point of view of institutional arrangements and the relationship between environmental resources analyzed. However, because of environmental resources with the attributes of public goods and external sexual characteristics, in reality, there is also such as “Tragedy of the Commons,” the negative effects of such external resources and environmental management of such positive effects of external conflict between the management of environmental resources as the subject of people, because of the existence of individual rationality and collective action dilemma of the contradiction between, making the governance of environmental resources has become very difficult. Generally speaking, the current resources on the environment including the institutional arrangements imposed by the Government and the two aspects of market transactions, but the implementation process in which there are some limitations.Special geographical location in to a certain extent, led to the natural characteristics of its geographical diversity and the complexity and diversity, its ecological environment of the type of complex and diverse, unique, including the Loess Plateau area of desertification in Hexi Corridor — Oasis area, Gannan plateau mountain areas and the four major types of Longnan area, and and natural history of the dual role of the ecological environment is quite prominent, and its environmental resources management is particularly complex. Gansu Province on the management of environmental resources must be in line with local conditions, direct classification, and will be possible to obtain the desired results.
The Gannan area is situated at Yellow River and Yangtze River’s upstream region, has provided the important supply of water source for Yellow River and Yangtze River. But in recent years, due to man-made and natural factors, the Gannan area’s ecological environment has encountered the certain extent destruction and has affected the water supply function. As our country important rivers and streams source area, is also our country’s one of ten tibetan national minority autonomous prefectures, Gannan (state) water source region’snot only relates our country’s ecological and economic security, and has political and meaning.All along, due to the limitations and constraints in historical and cultural traditions, and natural conditions, Gannan area’s economic development quite lags. At the same time, as an integral part of the Qinghai-Tibet Plateau district, Gannan areas has fragile eco-environment characteristics. In division of main functional areas, Gannan area is restricted and prohibited zones. So, Gannan area is facing dual pressures and objective of economic development and environmental 。The article takes ecological as a breakthrough point, takes the Gannan area as the whole, analyses the problem of development in Gannan, proves sustainable development is inevitable choice to protection of water source region, internal development unifies with the exterior benefit compensation mechanism is important content of protection to water resource region, and pointing out that the protection of water source place should adjust own industrial structure, establish industry environment may be carrying and combine with the exterior benefit compensation mechanism.Through the analysis, the article comes to the conclusion that to realize protection of Gannan water source place, the key is to build a reasonable mechanism for economic development and ecological protection mechanism, is necessary to further improve the existing system and system, so as to build whole mechanisms of ecological protection and economic development in water source place and achieve coordinated and sustainable development of ecology and economy.
Evaluation of Eco-environment Fragilily with BP Artificial Neural Networks in Wulate Country, Inner Mongo Lia, China
Since the Industrial Revolution, the humaneconomy has developped swiftly, and the material wealth has satisfied greatly. Meanwhile, gradual reduction of the non-renewable resources,excessive use of the renewable resources, and substantial emissions of the toxic pollutant, depletion of these natural resources has triggled a series of the eco-enviromental problems, such as soil erosion, expansion of desertification area, grassland degradation, reduce of the forest area, biodiversity loss, etc. The vulnerable eco-enviroment has seriously affected human depositors and development. At the international level, research on the eco-enviromental vulnerability has been made fruitful.Interioly,the most relevant research has been mainly concentrated on the oasis in northwest arid inland area. locates in the northern farming-pastoral region, which is dryness and has little rain. Excessive human activity has made the ecological environment of the facing soil salinization and basification, desertification and grassland degradation, which have seriously harmed people’s lives and property safety, and socio-economic development, so study and protection to the eco-enviromental vulnerability has been imminent.In this paper, the territory of the eco-enviroment in Wulate County were considered to the research object, the vulnerability was evaluated by combining qualitative and quantitative methods, the reasons for causes of the vulnerability were analyzed from natural and man-made causes, and the concrete countermeasures of resuming and rebuilding were brought forward aiming at the vulnerability. This paper is trying to provide reference to restoration and construction of the eco-enviroment of Wulate County and basin outflow, and regional sustainable development. The following six parts was divided to explain the questions.The first part of this paper starts by describing the background and significance of the research, the current research, research theory and method on domestic and foreign eco-environmental vulnerability.Subsequently,the geographic profile、ecological enviroment, and driving forces analysis of the eco-enviromental vulnerability of WuLate County was summed up. First of all, the geographic environment was depicted as this aspects, such as, climate, geology, hydrology, topography, vegetation, etc. Administrative divisions and population were used to account for the economic situation. In the next place, the principal componant analysis was employed to analyze driving forces which affected the eco-enviromental vulnerability, here, summing up as follows, levels of modernization and industrial structure, backgrounds of vegetation cover, population quantity, and climatic conditions.The third part evaluated the eco-enviromental vulnerability. For one thing, principles of the evaluation was fixed on. In succession, mainly according to the principles and the local situation, simultaneity, combining the results of the PCA, the evaluation system was contructed. Finally, eco-evironment of the status quo was estimated by the BP Artifical Neural Network.The next part mainly clarified causes of the vulnerability. To sum up, there were two aspects which made the frangibility, natural and man-made reasons. Recent years, the main reason affecting the eco-environmental degradation in Wulate County were overgrazing, over-cultivation, and exploitation of water resource.Fifthly, five countermeasures which were deemed to improve the eco-environment were advanced.The last part summarized the whole thesis and brought forward expectation . In accordance with the deficiency existing in this research, aspects which should be awaited the further amelioration and research were put forward.
Study on Soluble Species of Aerosol and Fresh Snow on Glacier No.1 at Urumqi River Head, Eastern Tianshan, China
由于大气气溶胶对气候和环境有重要的影响,所以它的研究是全球变化中的前缘和热点之一。通过大气气溶胶的采集可以研究其对当今环境的影响,并且通过冰川区大气气溶胶样品的采集还可为冰芯中古环境记录的合理解释提供依据。本文基于对天山乌鲁木齐河源1号冰川（以下简称1号冰川）2007年4月16日-4月23日,8月5日-8月14日,10月20日-10月24三个时段内采集的大气气溶胶和新降雪样品中可溶性成分的分析( Na+、NH4+、K+、Mg2+、Ca2+、Cl-、NO3-、SO42- ),初步得出了以下主要结论:气溶胶中可溶性离子昼夜变化分析表明,1号冰川气溶胶夜间平均离子浓度高于白天浓度,七种离子中（NH4+除外）,除NO3-在全年中的平均离子浓度表现为白天高于夜间外,其余离子的平均浓度均是夜间高于白天。区域风向的日变化是控制气溶胶浓度昼夜变化的主要影响因素,相比之下大气环流的影响则相对较弱。在所研究的八组昼夜变化事件中,Ca2+的昼夜变化最为明显,离子浓度的高值事件多出现在晚上,而其余离子在采样时段内的昼夜变化事件表现则不尽一致,无明显规律。气/雪关系研究表明,1号冰川春、夏、秋三个季节气溶胶平均载量为86.22 neq·m-3,离子间相关性显示1号冰川存在NH4HSO4和（NH4）2SO4气溶胶,并有少量NH4NO3气溶胶存在。气溶胶和新雪样品中可溶性离子成分变化趋势相似,气溶胶浓度升高,新雪样品的浓度也会有所升高;气溶胶浓度降低,新雪样品的浓度也会降低。清除比率计算结果显示粉尘颗粒物(Ca2+、Mg2+)在八种离子中有着较高的清除比率,相对于其它离子,SO42-的清除比率最小。气溶胶和新雪中Ca2+、Mg2+、Na+、Cl-、K+的相关性很好,说明雪中这些离子的浓度基本能反映大气中的状况;对气相和颗粒相并存的NH4+和NO3-来说,雪中的离子浓度和大气中的离子浓度不相关,而气雪中SO42-浓度相关性低可能与降水对SO42-气溶胶的清除率低有关。该结论较为系统的给出了天山地区有关雪冰记录形成的关键环节-气/雪界面过程的证据,为该地区冰芯记录的恢复提供了依据。为了考察气溶胶的气候环境效应以及人类活动对全球变化的影响,仍需要在全球范围内开展长时间的气溶胶观测,并从冰芯记录中恢复大气成分的自然变化历史以及为其提供依据的雪冰现代过程。 SO42-. These findings give us confidence in the reconstruction of past atmospheric change using some snow date, although post-depositional process can alter the records of snow to some extent.
The west is the important ecological defense of China and determines theecological safe. However in recent years the western area stern ecological environmentsituation. The ecosystem’s regulatory function and service function dropped, affectedthe sustainable development of the whole nation. There are many reasons that causedthe ecological environment questions and lacking effectivemechanism is primary factor. As a result of the historical and reality reason, the westernarea cannot solve the difficulty which the ecological building faces independently.Theresearch on western region compensation question is not just to solute the sternecological environment question and improve the environmental protection policysystem, moreover is to adjust main interest relations, develop regional coordination andpromote justice. The overall looked at present, our country has done many workin the , but because involves complex adjustments of profitrelations, there are many difficultys. The research of ecological compensationmechanism and evaluation system is at the exploration stage.Therefore, the research onwestern region compensation mechanism has the vital practical significance.This research takes the sustainable development theory and resource environmentvalue theory, the public good theory and exterior innate disposition discusses as thetheoretical support, takes the implemented western region construction as the practicebackground, uses the empirical analysis and canonical parse , comparison analyzes andinduces analysis, embarks from the academic track of ecologieal pensation theory homeand abroad. The paper elaborates the situation of western region environment, combsquestion which existed in the western region construction, analysis the origin, andproposed the establishment and consummation western region compensationmechanism suggestion, hoping to contribute for the western region compensationresearch and practice.This study conclusion is as follows:(1) The western region ecological compensation is necessary. 1st, the sustainabledevelopment of our country, the ecological value theory request western regionecological compensation is necessary. 2nd, western region has made huge sacrifice forthe development of the nation and undertaken too many economies and ecology cost.3rd, for the region coordination development, the ecological compensation flaw will intensify unbalanced development of our countory. According to the four majorfunction area division , the west will undertake more function of ecologicalenvironmental protection and miss the corresponding development opportunity. Basedon the environment fair idea, the government and the eastern region should makecompensation for the western area. 4th, the ecological compensation will be helpful inrealizing the development of the western region.(2) The questions in ecological compensation for the western region: 1st,theoretical exploration cannot follow the situation. 2nd, under the present organizationsystem, the management of the resources, ecology and environment is catteredtype,which causes unsatisfactory effect. 3rd, ecological compensation in institutionalarrangements like in the law, the property system, the incentive mechanism, the policydesign and practice has the problem.The reasons are various: There is understanding,division In view of ecologicalcompensation. The government leading management system carries on restraint to thefarmer and the cattered type mode of administration influence the effect. The ecologicalenvironment legal framework has the flaw; the property system can not arouse thefarmers’ enthusiasm; the market system does not consummate cause supplies of ecologyproduct be short. The driving influence is insufficient,which causes the conflicts ofinterest between the main bodies .(3) Establishment and consummation western region compensation mechanism.1st, enhance the operating efficiency of ecological compensation mechanism. Explicitthe main body of ecological compensation. Definite ecological compensation object.Develops the multiplex financing way. Perfect ecological compensation fundmanagement system. 2nd, consummation western region compensation mechanism.Constructs reasonable ecological compensation legal framework, implements”Ecological compensation Rule”. Define property system. Found ecology product andservice market. Eencourage each interest player actively to participate in the ecologicalcompensation and ecological building. Encourage the following industry’s development.
Preparation of Polyferric Inorganic Polymer Composites and Application in Treatment of the Starch Wastewater
June 30, 2012· Category :Environmental and Natural· tags : Biotreatment technology, Carrier, Highly concentrated organic wastewater, Na-Bentonite, Polyferric chloride, Polyferric sulfate, wastewater treatment· Comments Off
At present, surface water pollution is a serious problem for many developing countries. As industrial and domestic wastewater containing excessive concentrations of organic pollutants is discharged into natural waters, such as rivers and lakes. Water pollution caused by starch production has been reported to be a serious problem in many Asian countries, particularly in China, Thailand, Korea and India. Starch is a kind of important industry matreials, which is applied in food, chemical, weave, medicine, and other industry. There are a lot of corporations to produce starch in China. The high concentration acid organic wastewater is produced in process of starch production, and its pollution is very severity. As far as treatment techniques of high concentration starch wastewater were concerned, anaerobic treatment is a kind of effective technique for organic wastewater, which has been progressed rapidly during recent decade. However, in order to keep the anaerobic biological reactor running normally, the COD concentration of wastewater should be lower than 5000 mg/L. For the highly concentrated organic wastewater, the pretreatment is necessary, such as flocculating. Flocculation is a kind of effective manner to treat high concentration organic wastewater. The typical flocculants are organic polymer flocculants (OPF), inorganic polymer flocculants (IPF) and composite polymer flocculants(CPF). In this thesis, some kinds of polymeric-iron flocculant were successfully prepared. They were used to pretreat high concentration of organic wastewater, the potato starch wastewater which contains starch, saccharides, protein and other soluble substances. They were some new kinds of water treatment chemicals, in the deal with the wastewater which had advantages as follows: the higher of the COD removal value, the good effect of Deodorization and Turbidity Removal.The thesis includes four chapters:Chapter 1: Biotreatment technique of starch wastewater and the study advance of flocculant.On the base of summering the pollution status of strach wastewaster, the treatment technique of strach wastewaster and study advance of flocculant were reviewed.Chapter 2: The preparation and flocculation procedures of the series of Polyferric Sulfate.Na-Bent is used as core in preparation of inorganic polymer flocculants, which afford new kinds of Intercalation Montmorillonite (PBa, PBb) for the first time. They were characterized by FT-IR spectra, TGA/DTA, XRD and EDS. Their images and grain size were analyzed via SEM and grain size distribution. In the weak acid condition, the result of the starch by PBa as follows: the COD removal rate reached to 68.8%, the COD removal value reached 4378mg/L and decoloration rates reached to above 90%; the result of the starch by PBb as follows: the COD removal rate reached to 46.4%, the COD removal value reached 4070mg/L and decoloration rates reached to above 80%.Chapter 3: The preparation and flocculation procedures of the series of Polyferric ChlorideThe series of Polyferric Chloride were prepared. They were characterized by FT-IR spectra, TGA/DTA, UV spectra. In the weak acid condition, the result of the starch wastewater treatment by PFC as follows: the COD removal rate reached to 53%, the COD removal value reached 3393mg/L and decoloration rates reached to above 90%; the result of the starch wastewater treatment by PFC-Bent-S as follows: the COD removal rate reached to 60.7%, the COD removal value reached 4384mg/L and decoloration rates reached to 93.8%; the result of the starch wastewater treatment by PFC-Bent-H as follows: the COD removal rate reached to 64.4%, the COD removal value reached 4650mg/L and decoloration rates reached to above 90%.Chapter 4: Effect of Waste Rock carrier in biotreatment of high concentration starch wastewater.Inorganic polymers wast rock were filled in the aerobic pond as microorganisms carrier. The bioreactor system was steadily operated more than one month. The results indicated that temperature was between 18°C and 35°C. pH varied from 5.0 to 7.5. COD concentrations of influent ranged from 2281 to 5909mg/L. The average COD concentrations of effluents were 761mg/L. The maximum remove rate of COD was 81%.
This paper briefly summarizes waste dye water degradation technologies that follow green chemistry principles. For the ideal characteristics of green chemistry pollutant destruction, i.e. reaction conditions under RTP and the use of inexpensive and nontoxic reagents, the iron based ZEA (zero-valent iron,, air) reaction shows high oxidative activity and has been widely used in organic pollutant destructions. This thesis describes two different kinds of dye are successfully degraded by the new ZEA reaction and also some mechanistic discussions and studies are done aimed at understanding the activity of the process in detail.Chapter 2 descibes the whole process utilizing green wet oxidation technology- (zero-valent iron, , air) to degrade wastewater containing dye Fuchsine. The reaction conditions are optimized and the method can get satisfied results for remove the color of the dye. At the same time the hydroxyl radical concentration is measured in the process. We also discuss the possible mechanism of the reaction.Chapter 3 details a new oxidation process designed as a green decoloration of wastewater containing dye, namely brilliant green (BG). The investigation revealed that the method can remove the color of the dye completely. The results show the dye rapidly undergoes decoloration just using air as the oxidant under room temperature and atmosphere pressure. Various factors such as the pH, the initial concentration of dye and the temperature are examined. We found increasing the temperature enhances the dye decolorization. Also, the buffer under low pH is critical to improve the reaction rate. The optimum pH in this study is about pH 3.6. The mechanism and reaction kinetic for the decolorization of dye in the process is also discussed.Chapter 4 The ZEA system is unique in that can produce a kinetically facile oxidative environment by the production of H2O2, HO·and other reactive oxygen species in situ by the activation of molecular oxygen. In this part we describe high performance liquid chromatographic assay of hydroxyl free radical using salicylic acid hydroxylation during dye waste water treatment involving ZEA. proves indirectly the hydroxyl free radical exist in the ZEA system from the assay products2, 5-dihydroxybenzoic acid, 2,3-dihydroxybenzoic acid and 1,2-benzenediol.
Study on the Adsorption Behaviors of Anion-cation Surfactants Modified Palygorskite for Organic Materials in Water
June 30, 2012· Category :Environmental and Natural· tags : adsorption, Adsorption isotherms, Adsorption thermodynamics, anion-cation surfactants modified palygorskite, Benzene, hydroquinone, methy orange, p-Nitrophenol· Comments Off
With the development of the composite materials, the requirement of the modified inorganic composite materials was increased rapidly. Because of its advantages of abundant reserves、low prices and the stability of the physical and chemical properties, the different composite materials prepared from clays attracted extensive attention. After being modified by organic materials, the inner and outer sueface of the clay transfer from hydrophobic to hydrophilic, the affinity between the clay and the organic materials is increased, which can not only effectively remove the organic matter in wastewater, but also to further expand the scope of application of clay. Based on the review of the properties, modified methods and the applications of the palygorskite, the dissertation include following contents:1. Thewere preparaed by adopting microwave assistant and the convention methods, and there were characterized by element analysis, FTIR spectra and the SEM.2. The sorption property of modified palygorskite for benzene, , p-nitrophenol and methyl orange in water were studied. The effects of type of the cation surfactant, the ratio of anionic surfactant to cationic surfactant, amount of the surfactant, microwave irradiation time, the amount of the adsorbent, pH, temperature and sorption time on the removal of benzene, , p-nitrophenol and methyl orange were investigated. Comparing to natural palygorskite, the capacity of anion-cation modified palygorskite is higher in the treatment of benzene, , p-nitrophenol and methyl orange.3. The maximum removal rate of benzene was 93.66% and the maximum capacity for benzene was 1276.57mg.g-1. The adsorption isotherms were regression analyses with the Freundlich equations and Langmuir equations, but the Langmuir equation is better. Thermodynamic function calculation shows that the adsorption is a spontaneous and endothermic process. Enthalpy and entropy change of the sorption of benzene are 61.05 kJ·mol-1 and 223.73J·mol-1·K-1 , respectively. Free energy of the adsorption decreases with the increase of temperature.4. The maximum adsorption capacity for hydroquinone was 137.47mg·g-1. The adsorption equilibrium was in accordance with the Langmuir isothermal adsorption equations. The thermodynamic parameters were calculated, and the enthalpy(△H) and entropy (△S) of the adsorption were -93.58kJ·mol-1, -299.32J·mol-1·K-1, respectively, which showes that the adsorption is a spontaneous and exothermic process.5. The maximum adsorption capacity for p-nitrophenol is 137.74mg·g-1. The adsorption equilibrium is in accordance with the Langmuir isothermal adsorption equations, but the Langmuir equation is better. Thermodynamic function calculated shows that the adsorption is a spontaneous and exothermic process. The adsorption enthalpy and entropy change of p-nitrophenol are 59.16 kJ·mol-1 and 205.48J·mol-1·K-1, respectively. Free energy of the adsorption increases with increasing of the temperature. The adsorption of p-nitrophenol is a pseudo-second-order process.6. The maximum sorption capacity for was 121.77mg·g-1,the maximum removal rate of methyl orange was 98.80%. The sorption isotherms were regression analyses with Langmuir equations better. Thermodynamic function calculation shows that the adsorption is a spontaneous and exothermic process. Enthalpy and entropy change of the adsorption of are -8.80kJ·mol-1 and -18.01J·mol-1·K-1, Free energy of the adsorption increases with the increase of temperature.
Along with urbanization and industrialisation,lead polution in city is so serious that has side effect on urban ecological system,so the study onof species to is important for urban ecological system.Studies on the physiological characteristics and mechanism of leaves in Loropetalum chinese（R.Rr.） Oliv.,Platycladus orientalis（L.） Endll,Acacia famesiana（Linn.） Willd, Populusdeltoides×Populus nigra were carried out under four lead gradient(0,300,450 and 600 mg·kg-1).The changes on physiological characteristics were measured and analyzed under .The results were as follows:1) With increasing,the membrane permeability and content of MDA in four species increased.The most changes happened on Acacia famesiana（Linn.） Willd which were respective 75%,54%,while the least happened on Populusdeltoides×Populus nigra which were respective 33%,24%.2) As an key osmotica,Proline increased obviously（p＜0.05） in Populusdeltoides×Populus nigra,Platycladus orientalis（L.） Endll and Loropetalum chinese（R.Rr.） Oliv which maximal inceaseing accured in Platycladus orientalis（L.） Endll with 62%.The changes of dissoluble sugar in four spciese resmbled with pro which maximal inceaseing accured in Populusdeltoides×Populus nigra.The dissoluble protein in Loropetalum chinese（R.Rr.） Oliv.,Platycladus orientalis（L.） Endll,Populusdeltoides×Populus nigra had inceased while the obviously（p＜0.05） change accured in Populusdeltoides×Populus nigra.3) Under lead conditions,the activity of SOD,POD of Populusdeltoides×Populus nigra,Platycladus orientalis（L.） Endll and Loropetalum chinese（R.Rr.） Oliv increased markedly（p＜0.05） which maximal inceaseing accured in Populusdeltoides×Populus nigra with respectively 800 U·g-1,103 U·g-1·min-1,while Acacia famesiana（Linn.） Willd decreased when the lead stress beyond 450 mg·kg-1.4) Lead stress had an positive impact on the photosynthetic system of Populusdeltoides×Populus nigra,Platycladus orientalis（L.） Endll and Loropetalum chinese（R.Rr.） Oliv while negative impact on Acacia famesiana（Linn.） Willd.5) The photosynthetic factor contained by chlorophyll and photosynthetic speed is most important for resistance of lead for species,so Populusdeltoides×Populus nigra and Platycladus orientalis（L.） Endll have strong resistance which photosynthetic factor work well.6) The resistance of lead on the four species was assessment by using all the sensitive physiological indicators.The ability of lead-resistance was: Populusdeltoides×Populus nigra＞Platycladus orientalis（L.） Endll＞Loropetalum chinese（R.Rr.） Oliv.＞Acacia famesiana（Linn.） Willd.
Study on Accidental Water Pollution Risk and Safety & Environmental Admittance of Chemical Investment Projects in Area Nearby Waters
June 30, 2012· Category :Engineering Science· tags : accidental water pollution, admittance, area nearby waters, chemical investment projects, fuzzy risk assessment, safety and environmental, the accident-causing model· Comments Off
Enterprise safety operation and environmental protection issues are getting a shift of focus withdevelopment. In recent years, there is a high incidence of sudden water pollution accidents brought by chemical industry projects nearby waters in our country, such as Tuojiang water pollution events, the Songhua River water pollution events and so on. not only brings a great impact on the development of chemical industry, but also makes a serious damage to Eco-environment of the . This paper focuses on the theory and practice of and risk assessment for chemical busted in , analyzes and improves the deficiency of the access system for chemical projects in , and therefore has certain practical meaning.The paper reviews both domestic and foreign researches regarding , analyzes the characteristics and the causes of the chemical busted in area nearby waters, and proposes the chemical accidental water pollution causation theory and model based on the accident-causing theory and the real condition of chemical accidental water pollution nearby waters in our country. The model separates the occurring process of the chemical accidental water pollution into two stages, which are the stage of the primary chemical accident happens and the stage of the secondarily polluted water bursts. considers that the foundation defect is the essential cause of the primary chemical accident, such as the defect of school , , history, physical, mental and so on. And the foundation defect gives birth to the shortage of safety , dangerous recognition, management error and so on. Then, these shortages further bring on worker’s unsafe acts, hazard’s change, company’s weak emergency control, and consequently cause the primary chemical accident when the hazard’s safety state changed suddenly, which lead to the casualty and the economical loss. While the secondarily polluted water bursts is the result of company’s weak emergency control or weak regional emergency control. This model has a certain practical application value through applying it to analyze case of the Songhua River water pollution events.According to the relevant knowledge of fuzzy mathematics and risk assessment, the paper proposes the fuzzy risk evaluation model of chemical accidental water pollution in area nearby waters based on the chemical accidental water pollution causation model. It can be consisted of 50 risk assessment parameters which include 4 aspects(inherent hazard of projects, accident prevention ability, company’s emergency control ,regional emergency control), and the weight of each index is determined by the AHR Then, it proves the model’s feasibility and practicability through applying it to analyze a chemical project case.Finally, the paper points out the deficiency of the safety and environment for chemical investment project nearby waters based on study above, which includes safety of the production system and process, safety device, safety management level, the regional emergency rescue plan and it’s evaluation, unit qualification, investment scale, wastewater treatment ability, risk guarantee and so on. Then, it brings forward some advice and countermeasures for these deficiencies.