Multistage sewage purification system and sewage purification technology
A sewage purification and multi-stage purification technology, which is applied in water/sewage treatment, oxidized water/sewage treatment, multi-stage water/sewage treatment, etc., can solve the problems of long treatment time, high investment cost, and various equipment, and achieve the investment cost Low cost, reduced transportation costs, and simple equipment
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Embodiment 1
[0034] A sewage purification process, the steps comprising:
[0035] a. Send the sewage into the sedimentation tank 1 for preliminary sedimentation, and clean up the settled substances at the bottom of the sedimentation tank 1;
[0036] b. Send the upper layer sewage of the sedimentation tank 1 to the first-level purification tank 2 through the water pump 7, adjust the pH value of the first-level purification tank 2 to 8, stir for 30 minutes, add porous adsorbent while stirring, carry out precipitation, and clean up a The precipitated matter at the bottom of the first-grade sewage purification layer, and the porous adsorbent is washed burnt cinder;
[0037]C, the upper floor sewage of the primary purification pond 2 is sent into the secondary purification pond 3 by the water pump 7, and is exposed to ozone in the secondary purification pond 3 by the air pump 32 and the aeration pipe 31, while aeration, add oxidant, Coagulant and flocculant, then stand still for 24 hours to pr...
Embodiment 2
[0045] A sewage purification process, the steps comprising:
[0046] a. Send the sewage into the sedimentation tank 1 for preliminary sedimentation, and clean up the settled substances at the bottom of the sedimentation tank 1;
[0047] b. Send the upper layer sewage of the sedimentation tank 1 to the primary purification tank 2 through the water pump 7, adjust the pH value of the primary purification tank 2 to 7, stir for 20 minutes, add porous adsorbent while stirring, carry out precipitation, and clean up a The precipitated matter at the bottom of the first-grade sewage purification layer, and the porous adsorbent is washed burnt cinder;
[0048] C, the upper floor sewage of the primary purification pond 2 is sent into the secondary purification pond 3 by the water pump 7, and is exposed to ozone in the secondary purification pond 3 by the air pump 32 and the aeration pipe 31, while aeration, add oxidant, coagulant and flocculant, then stand still for 12 hours to settle, a...
Embodiment 3
[0055] A sewage purification process, the steps comprising:
[0056] a. Send the sewage into the sedimentation tank 1 for preliminary sedimentation, and clean up the settled substances at the bottom of the sedimentation tank 1;
[0057] b. Send the upper layer sewage of the sedimentation tank 1 to the primary purification tank 2 through the water pump 7, adjust the pH value of the primary purification tank 2 to 7.5, stir for 25 minutes, add porous adsorbent while stirring, carry out precipitation, and clean up a The precipitated matter at the bottom of the first-grade sewage purification layer, and the porous adsorbent is washed burnt cinder;
[0058] C, the upper floor sewage of the primary purification pond 2 is sent into the secondary purification pond 3 by the water pump 7, and is exposed to ozone in the secondary purification pond 3 by the air pump 32 and the aeration pipe 31, while aeration, add oxidant, coagulant and flocculant, and then stand still for 18 hours to set...
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