Technology suitable for anaerobic treatment of swine wastewater
An anaerobic treatment and wastewater treatment technology, which is applied in anaerobic digestion treatment, animal husbandry wastewater treatment, biological water/sewage treatment, etc., can solve the problems of short hydraulic retention time and affect the treatment effect, so as to improve the degree of decomposition and increase Hydraulic retention time, effect of height reduction
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[0015] The following are embodiments of the present invention:
[0016] Pig raising waste water volume: 1 ton / d, COD is 8624mg / L, BOD5 is 5600mg / L, TN is 394mg / L, phosphate is 98mg / L, present embodiment comprises the following steps:
[0017] 1. Cross-flow anaerobic fluidized bed, 6 meters long, 2 meters wide, 3 meters high, with an aspect ratio of 3, steel structure, fully enclosed.
[0018] 2. A partition wall is set in the middle, diversion walls are set at both ends, and water pumps are used to push water.
[0019] 3. Set up biogas outlet and slag outlet at the same time, which is convenient for biogas collection and utilization and future operation management.
[0020] 4. The main design parameters of cross-flow anaerobic fluidized bed: hydraulic retention time: 34d, push flow velocity: 0.35m / s, sludge concentration: 6000-8000mg / L.
[0021] 4. Treatment effect: COD dropped from 8624mg / L to 2008mg / L, and the removal rate was 76.72%; the total nitrogen concentration dropp...
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