Method for treating organic wastewater by utilizing laser strengthening activated sludge
A technology for activated sludge and organic wastewater, applied in water/sludge/sewage treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve the difficulty of mud-water separation, poor treatment effect, poor dehydration effect, etc. problems, to achieve the effect of improving the structure of activated sludge, improving dehydration, and increasing the depth of purification
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Embodiment 1
[0038] The treatment system consists of primary sedimentation tank, aeration tank, laser system, oxygen supply system, secondary sedimentation tank, return system and excess sludge discharge system;
[0039] The cultivation process of activated sludge is as follows: (1) At the initial stage, aerate for 22 hours a day, let it stand for 2 hours, discharge 4L of waste water, and supplement the corresponding weight of self-dispensing water to cultivate bacteria; (2) After 15 days, aerate every day 10h, stand still for 2h, then aerate for 10h, stand still for 2h to cultivate protozoa such as bacterial micelles and bell worms; (3) After 30d, increase the COD and NH of the influent every 46h 3 -N concentration, gradually increasing its effect on NH 3 -N removal rate until it reaches more than 90%, so as to increase the content of nitrifying bacteria and become qualified activated sludge;
[0040] The density of activated sludge is 1.005g / cm 3 , the particle size is 0.05mm, and the ...
Embodiment 2
[0048] The treatment system consists of primary sedimentation tank, aeration tank, laser system, oxygen supply system, secondary sedimentation tank, return system and excess sludge discharge system;
[0049] The cultivation process of activated sludge is as follows: (1) At the initial stage, aerate for 22 hours a day, let it stand for 2 hours, discharge 3L of waste water, and supplement the corresponding weight of self-dispensing water to cultivate bacteria; (2) After 14 days, aerate every day 10h, stand still for 2h, then aerate for 10h, stand still for 2h to cultivate protozoa such as bacteria micelles and bell worms; (3) After 30d, increase the COD and NH of the influent every 44h 3 -N concentration, gradually increasing its effect on NH 3 -N removal rate until it reaches more than 90%, so as to increase the content of nitrifying bacteria and become qualified activated sludge;
[0050] The density of activated sludge is 1.005g / cm 3 , the particle size is 0.2mm, and the sp...
Embodiment 3
[0058] The treatment system consists of primary sedimentation tank, aeration tank, laser system, oxygen supply system, secondary sedimentation tank, return system and excess sludge discharge system;
[0059] The cultivation process of activated sludge is as follows: (1) At the initial stage, aerate for 22 hours a day, let it stand for 2 hours, discharge 3L of waste water, and supplement the corresponding weight of self-dispensing water to cultivate bacteria; (2) After 13 days, aerate every day 10h, stand still for 2h, then aerate for 10h, stand still for 2h to cultivate protozoa such as bacterial micelles and bell worms; (3) After 28d, increase the COD and NH of the influent every 46h 3 -N concentration, gradually increasing its effect on NH 3 -N removal rate until it reaches more than 90%, so as to increase the content of nitrifying bacteria and become qualified activated sludge;
[0060] The density of activated sludge is 1.002g / cm 3 , the particle size is 0.1mm, and the s...
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