Efficient sewage COD (chemical oxygen demand) treatment method
A treatment method and technology for sewage, applied in water/sewage treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as poor biodegradability, high toxicity, technical lag, etc., and achieve sludge volume Small, clear and transparent water quality, low cost effect
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[0020] The steps of the high-efficiency wastewater COD treatment method are as follows:
[0021] (1) Domestication: First put the hydrolyzed acidifying bacteria into the bottom mud of fish ponds, after one week of domestication, gradually add a set concentration of wastewater containing quaternary ammonium salt and N and P nutrients to make them domesticated ;
[0022] (2) Anaerobic hydrolysis and acidification treatment: After the hydrolysis and acidification bacteria are domesticated and the film is stabilized, the sewage and hydrolysis and acidification bacteria are added to the anaerobic bioreactor for anaerobic hydrolysis and acidification treatment, and regular sampling and analysis are performed, and the COD rapid determination method is used to determine COD value of sewage;
[0023] (3) Aerobic biological contact oxidation treatment: the sewage after anaerobic hydrolysis and acidification is added to the aerobic biological contact oxidation reactor for aerobic biological co...
Embodiment 1
[0028]
[0029] experimental method:
[0030] (1) Add quantitative glucose and sodium acetate solution or dilute to municipal sewage with known COD concentration to prepare sewage with specific COD concentration.
[0031] (2) Carry out experiments according to the specific implementation methods according to the parameters in the chart.
[0032] (3) Determine the pH, COD concentration and turbidity of the inlet and outlet water.
Embodiment 2
[0034]
[0035] experimental method:
[0036] (1) Add quantitative glucose and sodium acetate solution or dilute to municipal sewage with known COD concentration to prepare sewage with specific COD concentration.
[0037] (2) Carry out experiments according to the specific implementation methods according to the parameters in the chart.
[0038] (3) Determine the pH, COD concentration and turbidity of the inlet and outlet water.
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