Pig farm waste water processing technology
A pig farm wastewater and treatment process technology, applied in animal husbandry wastewater treatment, water/sewage multi-stage treatment, biological water/sewage treatment, etc., can solve the problems of high cost of subsequent sludge treatment, large amount of sludge produced, complex facilities, etc. , to achieve the effect of simple facilities, reduced processing costs, and low cost
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Embodiment 1
[0033] A pig farm wastewater treatment process, comprising the following steps:
[0034] Step A1, carrying out a solid-liquid separation of pig farm waste water through a sump, and the solid waste I obtained is used as a raw material for organic compound fertilizer; wherein, the hydraulic retention time of the sump is 0.2h;
[0035] In step A2, the liquid waste I obtained from the primary solid-liquid separation is subjected to a second solid-liquid separation through a biomultiplication biochemical reaction tank, and the solid waste II obtained in the second solid-liquid separation is subjected to calcium salt enhanced flocculation precipitation through a flocculation sedimentation tank, and the obtained precipitate is used for It is used for the recycling of phosphate fertilizer; the matrix filler of the flocculation sedimentation tank is set alternately with modified seaweed soft layer and modified coal gangue layer three times, a total of six layers; among them, compound ba...
Embodiment 2
[0041] A pig farm wastewater treatment process, comprising the following steps:
[0042] Step A1, carrying out a solid-liquid separation of pig farm waste water through a sump, and the solid waste I as a raw material for organic compound fertilizer; wherein, the hydraulic retention time of the sump is 0.3h;
[0043] In step A2, the liquid waste I obtained from the primary solid-liquid separation is subjected to a second solid-liquid separation through a biomultiplication biochemical reaction tank, and the solid waste II obtained in the second solid-liquid separation is subjected to calcium salt enhanced flocculation precipitation through a flocculation sedimentation tank, and the obtained precipitate is used for It is used for the recycling of phosphate fertilizer; the matrix filler of the flocculation sedimentation tank is set alternately with modified seaweed soft layer and modified coal gangue layer three times, a total of six layers; among them, compound bacteria are added ...
Embodiment 3
[0050] A pig farm wastewater treatment process, comprising the following steps:
[0051] Step A1, carrying out a solid-liquid separation of pig farm waste water through a sump, and the solid waste I obtained as a raw material for organic compound fertilizer; wherein, the hydraulic retention time of the sump is 0.25h;
[0052] In step A2, the liquid waste I obtained from the primary solid-liquid separation is subjected to a second solid-liquid separation through a biomultiplication biochemical reaction tank, and the solid waste II obtained in the second solid-liquid separation is subjected to calcium salt enhanced flocculation precipitation through a flocculation sedimentation tank, and the obtained precipitate is used for It is used for the recycling of phosphate fertilizer; the matrix filler of the flocculation sedimentation tank is set alternately with modified seaweed soft layer and modified coal gangue layer three times, a total of six layers; among them, compound bacteria ...
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