Resource utilization and treatment method of livestock breeding wastewater
A technology for livestock and poultry breeding wastewater and treatment methods, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of large investment, high operating costs, and inability to fully recycle, etc. problems, to achieve the effect of overcoming low resource utilization, stable water quality, and meeting the water quality requirements for recycling
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Embodiment 1
[0039] 500 tons / day livestock and poultry breeding wastewater resources utilization and wastewater treatment methods.
[0040] The water quality indicators of the livestock and poultry breeding wastewater were determined as shown in Table 1.
[0041] serial number project unit measured value serial number project unit measured value 1 COD Cr mg / L 5000 5 Ammonia nitrogen mg / L 1000 2 SS mg / L 20000 6 Fecal coliforms pcs / L 2.5×10 7 3 BOD 5 mg / L 2900 7 roundworm eggs pcs / L 15000 4 Total Phosphorus mg / L 150
[0042] (1) Anaerobic digestion to produce biogas
[0043] The livestock and poultry breeding wastewater is collected through pipelines and discharged into the anaerobic pool 1. The organic acids are decomposed into methane and carbon dioxide under the combined action of anaerobic and facultative bacteria adsorption, fermentation, and methanogenicity in the anaerobic pool 1. The tre...
Embodiment 2
[0059] 1200 tons / day livestock and poultry breeding wastewater resources utilization and wastewater treatment methods.
[0060] The water quality indicators of the livestock and poultry breeding wastewater were determined and shown in Table 5.
[0061] serial number project unit measured value serial number project unit measured value 1 COD Cr mg / L 13000 5 Ammonia nitrogen mg / L 1000 2 SS mg / L 16500 6 Fecal coliforms pcs / L 2×10 7 3 BOD 5 mg / L 4500 7 roundworm eggs pcs / L 12000 4 Total Phosphorus mg / L 180
[0062] (1) Anaerobic digestion to produce biogas
[0063] The livestock and poultry breeding wastewater is collected through pipelines and discharged into the anaerobic pool 1. The organic acids are decomposed into methane and carbon dioxide under the combined action of anaerobic and facultative bacteria adsorption, fermentation, and methanogenicity in the anaerobic pool 1. Treatm...
Embodiment 3
[0077] 2000 tons / day livestock and poultry breeding wastewater resources utilization and wastewater treatment methods.
[0078] The water quality indicators of the livestock and poultry breeding wastewater are shown in Table 9 after determination.
[0079] serial number project unit measured value serial number project unit measured value 1 COD Cr mg / L 7500 5 Ammonia nitrogen mg / L 600 2 SS mg / L 17000 6 Fecal coliforms pcs / L 3×10 7 3 BOD 5 mg / L 3900 7 roundworm eggs pcs / L 10000 4 Total Phosphorus mg / L 110
[0080] (1) Anaerobic treatment
[0081] The livestock and poultry breeding wastewater is collected through pipelines and discharged into the anaerobic pool 1. The organic acids are decomposed into methane and carbon dioxide under the combined action of anaerobic and facultative bacteria adsorption, fermentation, and methanogenicity in the anaerobic pool 1. Treatment improves the...
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