A method for identifying driving factors of pollutant discharge in industrial wastewater
A technology for industrial wastewater and pollutants, which is applied in the fields of instruments, chemical machine learning, electrical digital data processing, etc. It can solve the problems of not considering the effect of water saving and pollution reduction, and being unable to measure the contribution of water saving and pollution reduction.
Active Publication Date: 2019-07-30
NANJING HYDRAULIC RES INST
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[0027] In order to better understand the present invention, the technical solution of the present invention will be described in detail below by taking COD discharge in industrial wastewater in Shandong Province as an example, but the present invention is not limited thereto.
[0028] (1) Collect the added value of 24 comparable industrial sectors in Shandong Province in 2002, 2007 and 2012 Fresh water consumption (W i t ), wastewater discharge (P i t ), COD production and COD emissions And calculate the comparable price added value G of the overall industry in Shandong Province in 2002, 2007 and 2012 t , fresh water consumption W t , waste water discharge P t and the amount of pollutants produced in industrial wastewater A t , Pollutant emissions E t data;
[0029] (2) Establish an identification model for the driving factors of pollutant discharge in industrial wastewater: use the following identity of pollutant discharge:
[0030]
[0031] The change of pol...
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The invention discloses an industrial wastewater pollutant emission amount driving factor identification method which considers water saving, emission reduction and pollutant government. The method comprises the following steps of: collecting price-comparable industry-classified values added, fresh water consumption, wastewater emission loads and wastewater pollutant emission data in different years; constructing an industrial wastewater pollutant emission amount identical equation from the whole process of pollutant generation, government and emission by considering water saving, emission reduction and pollutant reduction, and decomposing industrial wastewater pollutant emission amount change into 6 driving factors such as an industrial value added, a pollutant emission structure, a water consumption efficiency, a wastewater emission coefficient, a pollutant generation intensity and pollutant government; deducing a contribution value measurement formula by utilizing an LMDI method, measuring contributions of the driving factors and water saving, emission reduction and pollutant reduction, quantitatively interpreting pollutant emission amount change contribution without residuals, identifying key factors and disclosing a driving mechanism through sizes of the contribution values.
Description
technical field [0001] The invention relates to a method for identifying driving factors of pollutant discharge in industrial wastewater considering the functions of water saving, emission reduction and pollutant treatment. Background technique [0002] The discharge of industrial wastewater and its pollutants is one of the factors causing serious water pollution in my country. According to the data of point source wastewater and major pollutants in the "China Environmental Statistical Annual Report" from 1997 to 2015, it is found that the discharge of wastewater has increased year by year, from 41.57 billion tons in 1997 to 73.47 billion tons in 2015; the discharge of industrial wastewater is significantly Decline, from 22.67 billion tons in 1997 to 19.95 billion tons in 2015. And point source chemical oxygen demand (COD) emissions and ammonia nitrogen emissions have decreased year by year. COD emissions decreased from 17.57 million tons in 1997 to 11.404 million tons in ...
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IPC IPC(8): G16C20/70
CPCG06F2219/10G16C20/70
Inventor 程亮王宗志刘克琳杨春美胡霞吕学研谢伟杰
Owner NANJING HYDRAULIC RES INST