Treatment method of pharmaceutical chemical industry park hybrid waste water
A technology for mixed wastewater and chemical industry parks, applied in natural water treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problems of high concentration, refractory degradation, large water quality fluctuations, high toxicity, etc., and achieve simple management and occupation small area effect
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Embodiment 1
[0024] During the treatment of mixed wastewater in a pharmaceutical and chemical park, the influent COD=1000~1500mg / L, BOD 5 =300~400mg / L, pH value 7.0~8.0, chroma is 200 times, SS is 1800mg / L.
[0025] (A) The mixed wastewater enters the hydrolysis tank after adjusting the water volume and water quality through the adjustment tank. The tank capacity is designed to be 230L. The inoculated sludge is the anaerobic digestion sludge and concentrated sludge in the urban sewage treatment plant. The sludge concentration of the hydrolysis tank is 3000 liters. ~5000mg / L, filled with suspended filler (PE+vinylon silk), using up-flow water distribution, the ascending flow rate is 1.0-1.6m / h, and the residence time (HRT) is 11.5h.
[0026] (B) After the wastewater is hydrolyzed, it enters the anaerobic tank. The tank capacity is designed to be 450L. The upward flow rate of the liquid in the tank is 0.5-1.2m / h. The inoculated sludge is the anaerobic digestion sludge and concentrated sewage...
Embodiment 2
[0032] During the treatment of mixed wastewater in a pharmaceutical and chemical park, the COD of the influent water is 1500-2000 mg / L, and the BOD 5 =350~600mg / L, pH value 8.0~9.0, chroma is 250 times, SS is 2100mg / L.
[0033] (A) The mixed wastewater enters the hydrolysis tank after adjusting the water volume and water quality through the adjustment tank. The tank capacity is designed to be 230L. The inoculated sludge is the anaerobic digestion sludge and concentrated sludge in the urban sewage treatment plant. The sludge concentration of the hydrolysis tank is 3000 liters. ~5000mg / L, filled with suspended filler (PE+vinylon silk), using up-flow water distribution, the ascending flow rate is 1.0-1.6m / h, and the residence time (HRT) is 13h.
[0034](B) After the wastewater is hydrolyzed, it enters the anaerobic pool. The pool capacity is designed to be 450L, and the rising flow rate of the liquid in the pool is 0.5-1.2m / h. Sludge, the parameters of sludge properties are: 60~...
Embodiment 3
[0040] In the mixed wastewater treatment process of a pharmaceutical and chemical industry park, the influent COD=1000~3000mg / L, BOD 5 =300~7500mg / L, pH value 6.0~8.0, chromaticity 220 times, SS 2500mg / L.
[0041] (A) The mixed wastewater enters the hydrolysis tank after adjusting the water volume and water quality through the regulating tank. The tank capacity is designed to be 230L. The inoculated sludge is anaerobic digested sludge and concentrated sludge in the urban sewage treatment plant. The sludge concentration in the hydrolysis tank is 3000 ~5000mg / L, filled with suspension filler (PE+vinylon yarn) inside, adopts upflow water distribution, the ascending flow rate is 1.0~1.6m / h, and the residence time (HRT) is 15h.
[0042] (B) After the wastewater is hydrolyzed, it enters the anaerobic pool. The pool capacity is designed to be 450L, and the rising flow rate of the liquid in the pool is 0.5-1.2m / h. Sludge, the parameters of sludge properties are: 60~68gVSS / L, 70~80gSS...
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