Biological reinforcing technology for increasing stability of oil-contained waste water treatment system
A wastewater treatment system and bio-augmentation technology, applied in the fields of biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the high load, impact, pollutant type and concentration variation of the treatment system It can achieve the effect of rapid decline of enzyme activity, improvement of community structure, and rapid recovery and stable operation.
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Embodiment 1
[0017] Example 1: 2000 mg / L activated sludge was added to SBR reactors A and B with an effective volume of 1 L to treat the refinery wastewater from Nanchong Oil Refinery after oil separation and air flotation treatment. The results of the wastewater quality analysis are shown in the table 1. According to Table 1, it is determined that the composite microbial bacterial agent used is the petroleum-based high-efficiency degradation composite bacterial agent ENVICAS-PD produced by Chengdu Zhongke Chuangzhi Environmental Protection Co., Ltd. (the number of viable bacteria in the bacterial agent is about 10 9 individual / mL), without adding microbial growth promoters. Reactor A was used as a control, and 100mL of the selected compound microbial agent was added to reactor B. After 3 days of continuous normal operation, the COD removal rate reached a stable level. Then increase the water load, carry out 2 days of high-load impact, and analyze and detect various biological indicators ...
Embodiment 2
[0033] Example 2: 2000 mg / L activated sludge was added to SBR reactors A and B with an effective volume of 5 L to treat high-concentration refinery wastewater from Nanchong Oil Refinery. The water quality analysis results are shown in Table 6. According to Table 6, it is determined that the composite microbial bacterial agent used is the petroleum-based high-efficiency degradation composite bacterial agent ENVICAS-PD and the polycyclic aromatic hydrocarbon and heterocyclic high-efficiency degradation composite bacterial agent ENVICAS-ND produced by Chengdu Zhongke Chuangzhi Environmental Protection Co., Ltd. The number of bacteria is about 109 / mL), and the microbial growth promoter is a vitamin compound liquid growth promoter produced by Chengdu Zhongke Chuangzhi Environmental Protection Co., Ltd. (the main components are vitamin B12, biotin, niacin, aminobenzoic acid, pyridoxamine hydrochloride, calcium pantothenate, dipotassium hydrogen phosphate, etc.). Reactor A was used a...
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