Natural gas purification wastewater is mainly divided into normal production wastewater and maintenance wastewater.The concentration of pollutants in normal production wastewater is low and can be treated by general biochemical treatment.The maintenance sewage contains a large number of complex biodegradable substances, biodegradability is poor, for many years mainly rely on fresh water dilution treatment and combustion furnace treatment, but these two methods are low efficiency and high cost, so it is necessary to develop new wastewater treatment methods.
Although we have studied the upflow anaerobic sludge bed reactor (UASB) for the treatment of high concentration sewage of the natural gas purification plant, the start-up test results of 133 days show that the effluent COD removal rate is only about 40% when the influent COD is 6000mg/L, and the treatment effect is not good.Therefore, it is of practical significance to explore and seek an effective pretreatment method.In this paper, Fenton oxidation and activated carbon adsorption were combined to pretreat the wastewater from natural gas purification maintenance, in order to improve the subsequent operation efficiency of UASB.
This experiment by orthogonal test to determine the Fenton reagent oxidation first preliminary operating conditions, on this basis, carries on the single factor analysis method, the main factors influencing the Fenton reagent treatment effect for each study, investigation of its influence on wastewater COD removal rate, the results show that Fenton oxidation method the optimum operating conditions for natural gas purification overhaul wastewater treatment: HO2 dosing quantity 0.3 mol/L, n (HO)/n (Fe) = systematically, initial pH = 3, reaction temperature 70 ℃, reaction time, 40 min.Water quality treatment and protection in power plants in the power industry;
Chemical industry of chemical catalyst and carrier, gas purification, solvent recovery and oil and other decolorization, refining;
Food industry beverage, wine, MSG mother liquor and food refining, decolorization;https://www.wyactivatedcarbon.com/
Gold extraction and tailings recovery in the gold industry;https://www.wyactivatedcarbon.com/products/powdered-activated-carbon/
Environmental protection industry sewage treatment, wastegas and harmful gas treatment, gas purification;
As well as related industries of cigarette filter, wood floor moistureproof, taste absorption, automobile gasoline evaporation pollution control, the preparation of various impregnation liquid, etc.
Activated carbon in the future will have excellent development prospects and broad sales market.
Main uses of activated carbon:
1. Used for liquid phase adsorption of activated carbon
· White water, T. Industrial water, electroplating wastewater, pure water, beverage, food, medicine water purification and preparation of electronic ultra-pure water.
· Decolorization, purification and purification of sucrose, xylose, monosodium glutamate, medicine, citric acid, chemical products and food additives
- Decolorization, impurity removal and flavor removal of grease, oil products, gasoline and diesel oil, purification, deodorization and impurity removal of alcohol and beverages, purification, refining, decolorization and filtration of products in fine chemical industry, pharmaceutical chemical industry and biological pharmaceutical process.
· Purification, decolorization, deodorization and COD reduction of environmental engineering wastewater and domestic wastewater
2. Used for gas phase adsorption of activated carbon
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Efficacy: it has the function of adsorption and purification for formaldehyde, benzene, radon, tVOC and other harmful gases released by various decorative materials, and it has obvious effect on removing various peculiar smells.
Application: new home, office building, hotel, air conditioning room, toilet, entertainment place, new furniture, car, etc.