Small and medium-sized river reach assimilative capacity accounting method considering sewage draining exit position influence
A technology of pollutant holding capacity and sewage outlet, which is applied in the field of water pollution holding capacity accounting, and can solve the problems of large ecological flow calculation results, small river section pollution holding capacity calculation results, and ignoring the influence of river section pollution holding capacity calculation results. , to achieve high precision
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[0064] If it is known: There are two sewage outfalls distributed on a certain river section.
[0065] Taking the COD water quality index as an example, the pollution-holding capacity calculation method of the present invention is used to calculate the pollution-holding capacity of the river section, and the "Calculation Regulations for the Pollution-Holding Capacity of Water Areas" (GB / T 25173-2010) Appendix A in Section A . The one-dimensional model of river pollution-holding capacity given in Article 1.2 is used to calculate the pollution-holding capacity of the river section, and finally the calculation results of the two methods are compared and analyzed.
[0066] The first step is to generalize and map the calculated river section. The generalized diagram of the river section is shown in Figure 5 .
[0067] In the second step, according to the generalized schematic diagram of the river section and the pollutant discharge data of the sewage outlet, the characteristics of...
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