Lvyuan Industrial Filtration Solution

Immobilized biological activated carbon fiber wastewater treatment technology

by:Lvyuan      2021-01-22
1. Wastewater treatment

1 oil-bearing wastewater with the rapid development of our country industry, oily wastewater emissions increased year by year, composition is complex. If directly into the water, the oil film will be cut off from the surface oxygen into the water, the water of oxygen, the stench that died, serious environmental pollution. At present, the biological chemical degreasing tend to study of oily wastewater separation screening strains of advantage. Vince li [23] artificial IBAC technology such as treatment of oily wastewater, the removal rate of oil between 80% ~ 95%, the average removal rate of COD was 53%. Out of the water, the oil mass concentration is less than 5 mg/L. The experimental results show that the process of removal efficiency of pollutants was obviously higher than that of granular activated carbon and conventional secondary air flotation process. Yao Hong etc. [24], aiming at different characteristics in the petrochemical wastewater pollutants using artificial separation filter to remove COD and oil engineering 6 strains of bacteria, nitrifying bacteria 10 strains build efficient, mixture by O3 - IBAC filter efficiency in addition to pollution pilot study shows that the system depth petrochemical refractory organic wastewater treatment is feasible, can realize the removal of COD, oil, NH3 - at the same time The effect of N pollutants such as, the average removal rate of 3 kinds of indexes and chromaticity were for 73. 0%, 90. 5%, 81. Corresponding water respectively 2% and 90%, 33. 2 mg/L、0. 4 mg/L、4. 5 mg/L and 10 times, the indicators have reached the national water for the circulating cooling water.

2 phenol wastewater phenol pollution mainly volatile phenol, such as phenol, cresol and xylenol. Phenol wastewater treatment technology of choice depends on the wastewater containing phenol concentration of phenol, CODCr values and other factors such as processing costs, etc. With the development of biotechnology and genetic engineering, biological methods to remove high concentrations of phenol wastewater has had the very big progress. The O3 - MA Fang, etc IBAC process gas, wastewater treatment, the COD and phenol removal rate can reach 80% and 92%, and found the engineering bacteria can exist long-term stability, high biological activity [25]. Coking wastewater in the total phenol in the water below 200 mg/L, total phenol content of basic water under 20 mg/L, each pollutant indexes by coagulation - IBAC process after advanced treatment can reach class a of integrated wastewater discharge standard ( GB897821996) A secondary standard [26].

3 slightly polluted wastewater slightly polluted wastewater is a huge potential resources, has the very high value of recycling. Variance in China Daily discharge of industrial cooling water and urea hydrolysis reached 100000 tons, its main pollutants for low concentration of methanol, recycle the waste water is an important way of wastewater reuse. In the small and pilot study, on the basis of ChanJingSen proposed using immobilized biological activated carbon low concentration of methanol wastewater treatment and reuse of process route. Project running show that the system can be the mixture of COD from 40 mg/L fell to below 12 mg/L, 93 on the removal rate of methanol. 6% ~ 100%, and the effluent water quality meet the reuse to desalted water system of the boiler feed water quality requirements [26]. Bath industry is a need to consume a large amount of water resources industry, and bath wastewater quantity big, light pollution, water quality stability. Eve, etc [27] with raw water - Coagulation - Precipitation - Filter - IBAC— Microfiltration membrane ( MF) — UV disinfection - Water bath wastewater treatment process flow, IBAC biochemical treatment unit to realize the organic pollutants, LAS, such as bath stink effectively remove, effluent water quality to achieve the water quality standard of urban water supply ( CJ/T206-2005) , is the basic measures to ensure the water.

4 other wastewater CongQiao sand filter, such as - Immobilized biological activated carbon fiber ( IBACF) Joint catering wastewater treatment technology, after processing the water turbidity, UV254, COD, oil removal rate was 83%, 67%, 84% and 91% respectively, it is considered that the sand filter - IBACF technology is feasible for the treatment of restaurant wastewater.
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