water pollution index 中文意思是什麼
water pollution index
解釋
水體污染指數-
The formulae of the pollution harm rate and the pollution harm index suited to multi - pollutants for the water quality assessment are derived by using the genetic algorithm to optimize the parameters in the formulae
採用遺傳演算法優化公式中的參數，得到了多種水質污染物都能適用的水質污染損害率和污染損害指數公式。 -
In this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes
本文將水質預測及水污染控制措施有機地結合，選取水環境容量和污染指數作為水污染控制的參數.這樣，一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進，因為其採用四點隱格式對水質進行預測，推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值，從而制定相應的水污染控制措施.為整體考慮各種污染物的情況，建議採用河流的污染指數進而推求綜合污染指數.總之，本研究為水質保護提供了科學的計算方法，該法對水污染控制及污水對河道水質的影響是實用有效的 -
Abstract : in this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes
文摘:本文將水質預測及水污染控制措施有機地結合，選取水環境容量和污染指數作為水污染控制的參數.這樣，一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進，因為其採用四點隱格式對水質進行預測，推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值，從而制定相應的水污染控制措施.為整體考慮各種污染物的情況，建議採用河流的污染指數進而推求綜合污染指數.總之，本研究為水質保護提供了科學的計算方法，該法對水污染控制及污水對河道水質的影響是實用有效的 -
On the basis of the safety system engineering theory. applying the dow fire & explosion index and the normal stability gauss mathematical diffusion model etc., combining with the practice of mouping port, the hazards during the handling and storage of liquid chemicals in bulk have been analyzed and the risks of fire explosion and leakage ( including water pollution and water pollution ) have been assessed. taking into account of insufficient consideration of the human factor in the dow fire & explosion index, the soft compensation coefficient has been raised
本文以安全系統工程為理論基礎，運用道氏火災爆炸指數法、平均運動方程組以及常穩態高斯數學擴散模型，結合牟平港散化運輸、裝卸的實際，對牟平港散化儲運的火災爆炸危險性和毒物泄漏危險性（包括水污染性和大氣污染性）進行了定性和定量的分析評價。在評價程序上，針對道氏火災爆炸指數法中對人為因素和管理水平等考慮不足的問題，提出了軟補償系數的概念，找出了散化碼頭日常監督管理工作的重點。 -
The objective of this research is to test the rcc from ] st to 6th order streams of changjiang river watershed in southern mountain area of anhui province, to explore the function and structure of macroinvertebrate community succession rule of the river. the changjiang river water quality asse ssment is carry on by comparison of the community characters of the point - pollution or non - point pollution sites to the hypothesized rcc, the macroinvertebrate community structure indices and bi index were used in the assessment
本文對閶江河底棲動物群落結構和功能進行了系統研究，運用河流連續性理論對該河一至六級支流各取食功能團比例的演替規律及毛翅目成蟲的群落結構進行了比較分析，並通過計算底棲動物群落結構指數和bi指數，對該河進行了水質評價。 -
The comprehensive pollution harm index of the water quality can be calculated with the aid of the general weighted contrast for the pollution harm partial indices
提出用對比加權對污染損害分指數進行賦權的新方法，計算水質綜合污染損害指數。 -
It was suggested that the strategy of comprehensive management and ecological controlling should be adopted firstly in the course of the control of secondary river ; the assessment index system of integrated control of the secondary river in chongqing should he established quickly ; the proper techniques of water pollution prevention and control that geared to the aim of the control should be chosen and integrated
在次級河流綜合整治過程中，首先應來取綜合管理、生態治理的綜合整治策略和思路；其次應盡快建立重慶市次級河流綜合整治評價指標體系，根據確定的整治目標，選擇恰當的河流水污染治理技術並進行集成。 -
But the ability of which to increase the quality of no3 - was not so clearly. the biggest value of no3 - concentration only attended ismg ' l " 1. while nh4 + and tn reached 120 mg ' l - 1 and 210mg ' l - 1, urea application can improve the ratio of nh4 + in the tn, decrease the ratio of no3 -. so nflt + and tn were the mostly important nitrogen indexes to monitor the water pollution in the paddy - field, no3 - may be the assistant nitrogen index
施氮能夠明顯地提高稻田表面水體中銨態氮和全氮的含量，而對于提高硝態氮濃度的能力較弱，硝態氮的最大濃度達到15mgl ~ （ - 1 ） ，而銨態氮最大值達到120mgl ~ （ - 1 ） ，全氮最大含量更達到210mgl ~ （ - 1 ） 。 -
To scientifically evaluate the quality of water environmental of xishan district, this text proposes revising the original evaluation system, makes certain improvement in original evaluation system, such as settlement of factor, synthesizing pollution index computing method, water pollution degree judge method, etc
摘要為全面、科學地評價錫山區水環境質量狀況，提出對原有評價體系作出修改，即對原評價體系中，評價因子的沒定、綜合污染指數計演算法、水污染程度的判定方法等作了一定改進。
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