Combined process of fbr-uasb-a/obr for industrial wastewater treatment
A 1.FBR-UASB-A, industrial wastewater technology, applied in water/sewage multi-stage treatment, biological water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problem of low removal efficiency of organic pollutants and process operation. Instability, increase in installation cost, etc.
Active Publication Date: 2019-03-29
江苏昕鼎丰环保科技有限公司
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Problems solved by technology
[0003] Judging from the existing patent materials, although the Chinese patent "Aerobic-anaerobic microbial repeated coupling treatment of sewage new technology (CN200310121766.7)" has a good effect, it will increase the cost of the device to a certain extent, and the aerobic-anaerobic microorganism Anaerobic repeated coupling is not conducive to the absolute anaerobic environment of microorganisms, and the efficiency of biological treatment is not high
The patent "a baffle reactor and its method for treating sewage (CN200610012070)" and the patent "integrated high-concentration organic wastewater treatment device (CN200310100513.1)" involve multiple couplings of anaerobic and aerobic processes, increasing The complexity of the equipment and the difficulty of operation and management, and there is no advanced oxidation process
[0004] At present, the existing industrial wastewater treatment process has problems such as high treatment cost, low removal efficiency of refractory organic pollutants, unstable process operation, unsatisfactory treatment effect, and failure to meet environmental protection requirements.
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Embodiment 1
[0044] The comprehensive wastewater produced by a chemical company needs to be treated. The influent concentration before treatment is COD≤6000mg / L, pH 6.5~8.5, SS≤300mg / L, NH 3 -N≤100mg / L, TP≤2.5mg / L, characteristic pollutant concentration chlorobenzenes≤80mg / L. The effluent is required to meet the secondary standard of "Jiangsu Provincial Chemical Industry Discharge Standards for Major Water Pollutants" (DB32 / 939-2006). The effluent indicators require COD≤120mg / L, pH 6.5~8.5, SS≤150mg / L, NH 3 -N≤25mg / L, TP≤1.0mg / L, characteristic pollutant concentration chlorobenzenes≤1.0 mg / L.
[0045] Attached figure 1 Combined process in the combined use of Fenton fluidized bed (FBR), upflow anaerobic sludge bed (UASB) and anaerobic / aerobic baffle reactor (A / OBR) to treat chemical wastewater; including conditioning Tank, Fenton fluidized bed, degassing neutralization tank, coagulation sedimentation tank, upflow anaerobic sludge bed, anaerobic / aerobic baffle reactor, connected in sequen...
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Abstract
The invention provides an FBR-UASB-A / OBR (Fluidized Bed Reactor-Upflow Anaerobic Sludge Bed-Anaerobic / aerobic Baffled Reactor) combined process for treating industrial wastewater. The combined process comprises a regulating reservoir, a Fenton fluidized bed, a degassing neutralization tank, a coagulative precipitation tank, an upflow anaerobic sludge bed and an anaerobic / aerobic baffled reactor; the units are connected sequentially through a water pipe, so as to treat the industrial wastewater. The process is optimized, and the line is clear and concise; the overall removal rate of COD (Chemical Oxygen Demand) is larger than or equal to 95%, the removal rate of organic featured pollutants is larger than or equal to 95%, the operation management is convenient, the process is stable, and the investment operating cost is low.
Description
technical field [0001] The invention relates to a wastewater treatment method, in particular to a process method for industrial wastewater treatment, and belongs to the technical field of wastewater treatment. Background technique [0002] General industrial wastewater has the characteristics of large changes in water quantity and quality, poor biodegradability, difficult to degrade, and complex and diverse pollutants. Generally, appropriate pretreatment methods are adopted according to the actual wastewater quality, such as flocculation, micro-electrolysis, adsorption, and photocatalysis. , Destroy refractory organic matter in wastewater, improve the biodegradability of wastewater, and then use biological methods, such as ABR, SBR, A / O process, etc., to treat industrial wastewater. At present, domestic and foreign research on industrial wastewater treatment technology also tends to adopt a combination of multiple methods. [0003] Judging from the existing patent materials...
Claims
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IPC IPC(8): C02F9/14
CPCC02F1/52C02F1/72C02F3/2846C02F3/301C02F9/00C02F2305/026Y02E50/30
Inventor 金建祥李朝霞丁成张文杰甘永航周佳玮
Owner 江苏昕鼎丰环保科技有限公司