Type and structure of activated sludge aeration tank The main working mode of activated sludge method 1. Type and structure of aeration tank 1. Type of gas tank ①According to the flowing state of the mixed liquid, the aeration tank can be divided into three types: push-flow type, complete mixing type
Comparison of various activated sludge processes Main Operation Modes of Activated Sludge Process 1. Various activated sludge processes So far, in the field of activated sludge process engineering, a variety of unique operating methods have been applied. There are mainly the following: ① Traditional push flow activated sludge method; ② Completely
Application and process parameters of activated sludge Multiplication of activated sludge and its application The proliferation of microorganisms in activated sludge is an inevitable result of the reaction of activated sludge and the degradation of organic matter in the aeration tank, and the proliferation of microorganisms is the growth of activated sludge.
Introduction to activated sludge-process flow and performance indicators Activated sludge can be divided into aerobic activated sludge and anaerobic granular activated sludge. Either way, activated sludge is a complex macroflocculation microbial symbiote composed of various microorganisms, organic and inorganic colloids, and suspended matter. This symbiote has strong adsorption and degradation capabilities, can adsorb
Introduction to Activated Sludge Process--Sewage Treatment In order to accelerate the dissolution of oxygen, "pure oxygen" aeration began to appear in the 1970s, replacing air with air with extremely high oxygen concentration. Most use surface aeration. operation The operation is mainly to control the amount of activated sludge and oxygen supply. The
Sewage treatment process Sewage treatment generally includes the following three treatment stages: The first stage is the removal of stones, gravel, fat, grease, etc. It is contained in the sewage by mechanical treatment (such as grid, sedimentation or air flotation). The secondary treatment is a biological treatment. Pollutants in sewage are degraded by
Characteristics and functions of municipal solid waste leachate Urban garbage is a major problem in urban environmental management. Landfill leachate from refuse transfer stations, incinerators, or landfills is produced by a variety of compounds, as well as contaminated and decaying materials. It contains extremely high concentrations of biochemical oxygen demand, chemical oxygen demand,