Research On Allocation And Account In Water Resources Circular Economy

Water shortage and water pollution crisis urgently need to develop water circular economy. Water recycling economy utilizes water resource and water environmental capacity in accordance with the ecological law, the core of which is the efficient use and recycling use of water and reduction of water pollutant emissions,the principle of which is "reduction, reuse, recycling", the goal of which is "low consumption, low emissions, high-efficiency ",the means of which is to build a " Water resource– Water production– Wastewater– Recycled water " closed circulation. Water recycling economy model need re-construct the water development and utilization according to fairness, efficiency-effectiveness and sustainability, form a model of economic growth, which is water intensive utilizable and water environment-friendly. The break points and important conclusions in this thesis are following: (1) It constructs a basic frame about circular economic allocation and accounting for water according to general model in mechanism design theory. This basic frame includes regional econo??developing goals as a result of specific resources and environment, circular economic allocation princi??for water (Reduction, Reuse,Recycling), circular economic allocation mechanism including government centralized allocation and market incentive allocation , circular economic implementation and accounting for water. (2) Water circular economic accounting is foundation of implementation, which is divided into water resources amount and flow accounting, water quality and pollutant accounting, environmental-economic accounting and water value flow accounting. (3) In the light of the optimal allocation of water flow rights as well as pollution rights under inequality constraints, It is put forward that a model of two-dimension quasi-market mechanism depending on government taxes and market regulation. It derives optimal allocation of water flows and pollution rights in equilibrium of water market. (4) Based on AHP model, the allocation index system of initial water rights to basin under sustainable environmental constraints is established, with the index weight of the system. Based on industrial and functional layout of Tianjin Binhai New Area , water resources carrying capacity is accounted and evaluated. Based on water function zoning of the area, allowable permitted assimilative capacity of water bodies is computed and appraised in order to plan total permitted pollution discharge capacity in 2010. Finally, put forward circular economic allocation of initial water rights to Tianjin Binhai New Area with Water Transfer Project from South to North (middle route) completed . (5) Aim at water circular economic allocation and accounting of Tianjin Soda Plant's relocation project, taking account of the constraints and development of Harbor Industrial Area, account and evaluate water circular economic allocation and implementation effects on sustainable utilization extent. Tianjin Soda Plant's water allocation project attain it's goals how to save water, improve water reuse, reduce wastewater discharge...