Treatment method for enzyme product applied to sludge reduction

Abstract

The invention discloses a treatment method for an enzyme product applied to sludge reduction. Enzymes are added to a water inlet pipe of a sewage treatment system, so that anaerobes in sewage are converted into aerobes, and CO2 is generated; a large amount of hydrolyzed extracellular enzymes are generated through the added enzymes, and macromolecular organic matter in sludge are decomposed into micromolecular organic matter through the hydrolyzed extracellular enzymes; and linking oxygen is released, and the micromolecular organic matter is utilized by various microorganisms. According to themethod, the enzymes are adopted, and a biological cytolytic technology is utilized; and food chains in the sludge are improved, and the capture capability of protozoa to the microorganisms in the sludge is improved so that the sludge is reduced. The treatment method is applicable for endogenous respiration of activated sludge, and the generation of excess sludge can be reduced; and species of filamentous bacteria can be reduced, and the configuration cost and operation cost of a sludge treatment device are reduced.

Description

technical field [0001] The invention relates to the technology in the field of sewage treatment, in particular to a treatment method in which an enzyme product is applied to sludge reduction. Background technique [0002] Since 1970, the activated sludge method and various forms of biofilm methods have become the standard process for sewage treatment. The process consists of a series of aerobic pools, anoxic pools, and packed towers to treat organic pollutants, mainly including On the 5th, the biological oxygen demand, chemical oxygen demand, nitrogen-containing pollutants, organic nitrogen, inorganic nitrite, nitrate and total phosphorus, among which, the total phosphorus is removed by biological phosphorus removal. After the phosphorus removal bacteria absorb a large amount of phosphorus, The form of mud is discharged, and the total phosphorus is treated; the end of the process is generally equipped with a disinfection process unit to eliminate pathogenic bacteria and viru...

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Problems solved by technology

[0005] The key operating parameter of the activated sludge method is the concentration of suspended solids in the mixed liquid of the treatment tank. If the concentration is too low, the suspended solids in the mixed liquid will float and overflow from the final sedimentation tank; Affected; and, the disposal cost of waste sludge activated sludge and waste solids is high, which generally accounts for 30%-40% of investment costs and operating costs, which is not conducive to the promotion of sewage treatment