Model of CO2 release amount in sewage treatment
A technology for sewage treatment and release, which is applied in the field of environmental engineering to achieve accurate and reliable estimation
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Embodiment approach 1
[0031] refer to figure 1 , using the inverted A / A / O sewage treatment process to establish CO in sewage treatment 2 release model.
[0032] 1. Biochemical action produces CO 2 Release amount, in the inverted A / A / O wastewater treatment process, CO 2 The processing links for the generation of releases are mainly:
[0033] ①Aerobic decomposition, anabolism and self-decomposition or endogenous respiration of microorganisms in the aerobic pool;
[0034] ② Anaerobic decomposition, synthetic metabolism and self-decomposition of microorganisms in anaerobic pool;
[0035] ③Denitrification of anoxic pool and self-decomposition of microorganisms.
[0036] 1) Aerobic pool CO 2 Production mechanism and release amount
[0037] Aerobic pools produce CO 2 The main functions are: organic pollutants and sludge oxidative decomposition, see (7) and (8) chemical equations, both of which are expressed by total organic carbon (TOC). CO 2 Yield is +R aerobic ,co 2,TOC .
[0038] C 10 h ...
Embodiment approach 2
[0095] Using the A / O sewage treatment process to establish CO in sewage treatment 2 release model. Since there is no anaerobic tank in the A / O sewage treatment process, formulas (13) and (26) are removed in Embodiment 1. Others are the same as in Embodiment 1, and the A / O sewage treatment process is adopted, and the sewage treatment releases CO 2 The model is as follows:
[0096] m bio- co 2 = Maerobic ,co 2 +M anoxic ,co 2 (34)
[0097] m no-bio- co 2 = M no-bio- co 2,coarse screenings +M no-bio- co 2,fine screenings +M no-bio- co 2,gritchambe +M no-bio- co 2,aerobic chamber +M no-bio- co 2,anoxic chamber +M no-bio- co 2,secondary sedimentationtank +M no-bio- co 2,disinfection canal +M no-bio- co 2,digestion chamber +M no-bio- co 2,dewatering (35)
[0098] Mco 2 = M bio- co 2 +M no-bio- co 2 (36)
Embodiment approach 3
[0100] Activated sludge treatment process is used to establish CO2 in sewage treatment 2 release model. The anaerobic and anoxic effects in Embodiment 1 are removed, that is, the formulas (13), (16), (26), and (27) in Embodiment 1 are removed. Others are the same as Embodiment 1, and activated sludge is used Treatment process, sewage treatment releases CO 2 The model is as follows:
[0101] m bio- co 2 = M aerobic ,co 2 (37)
[0102] m no-bio- co 2 = M no-bio- co 2,coarse screenings +M no-bio- co 2,fine screenings +M no-bio- co 2,gritchambe +M no-bio- co 2,aerobic chamber +M no-bio- co 2,secondary sedimentation tank +M no-bio- co 2,disinfectioncanal +M no-bio- co 2,digestion chamber +M no-bio- co 2,dewatering (38)
[0103] Mco 2 = M bio- co 2 +M no-bio- co 2 (39)
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