Study On Integrated Optimal Macro-distribution Model Of Regional Water Consumption And Pollutant Carrying Capacity

With the rapid development of society and economy, the shortage of waterresources and the deterioration of water environment have become the bottleneckrestriction to the development of society and the protection of ecology andenvironment. The2011No.1document from the National Central Government clearlystates that the country must practice most strict water resources management system,and establish the "Three Red Lines". The red line of total amount water resourcerational exploitation and the red line of pollutant carrying capacity for water functionarea limit the water consumption and pollutant quantity inlets into river for basin orregions, and the distribution of water is closely related to the pollution dumped intowater function area. Based on this point, water consumption and pollutant carryingcapacity should be taken into consideration when making plan for distributing waterresources. This study is financially supported by the National Natural ScienceFoundation of China (NO.51379191). A systematic study on the optimal distributionintegrated both regional water consumption and pollutant carrying is conducted. Themain research contents are as follows:(1) The existing research results of integrated optimal distribution of waterquality and quantity in both domestic and overseas are summarized, and thedeficiencies of optimal allocation of water resources at present are pointed out, thenthe necessity and research content of this paper are confirmed.(2) The water resource circular of the process for drawing and using, andpollution discharge in eco-economic system are analyzed. The benefits duringintegrated optimal distribution process of regional water consumption and pollutantcarrying capacity has been classified, which include water utilization benefits whenthe water resources participate in domestical, manufacturing, ecological cycleprocesses, and the treatment cost for environmental management. Based on Emergytheory, the calculative methods of the said every item of benefits and costs are alsopresented.(3) The principia of the optimal macro-distribution integrated both regionalwater consumption and pollutant carrying capacity are discussed. The integrated optimal macro-distribution model for regional water consumption and pollutantcarrying capacity is proposed to achieve the highest comprehensive benefits duringdistribution process, in which the quantity of regional water consumption and thepossible water supply, the traffic ability from water source to users, the needs ofdifferent users, pollutant carrying capacity for water function area, capital be used toreduce water pollutant as the constraint conditions. Lingo software is used to solvethe model.(4) Zhengzhou city has been selected as the research object. The schemes set andparameters interrelated of the model for Zhengzhou city have been confirmed bydiscuss. Different optimal allocation results of three planning standard years (2015,2020,2030) for two probabilities of assurance (50%,75%) have been recommendedthrough the model. Countermeasures and suggestions of reasonable exploitation andutilization of local water resources are proposed based on the analysis to theallocation results.(5) The conclusion of this study is presented, and further questions need to bestudied deeply are put forward.