a2/othe a2o method, also called aao method, is an abbreviation of the first letter of anaerobic-anoxic-oxic (anaerobic-anoxic-aerobic method) in english. it is a commonly used secondary sewage treatment process and can be used for secondary sewage treatment or the tertiary sewage treatment, as well
[2018-6-11]
first, set the reasonsurban drainage and sewage treatment are important components of municipal utilities and urbanization. in recent years, china's urban drainage and wastewater treatment industry has made great progress, but there are also some outstanding problems: first, the construction of
[2018-6-04]
in the normal operation of sewage treatment, severe sludge swelling will not occur in high temperature summers and cold winters, and often occurs in spring, summer and autumn/winter seasons. that is, the environment where temperature, water temperature, and air pressure alternate.1, season expansion
[2018-5-28]
recently, the ministry of environmental protection issued the “administrative measures on permitting waste discharge management (trial)” (“administrative measures”), which is the “provisional regulations on the management of emission permits” issued by the ministry of environmental protection in dec
[2018-5-28]
first, the working principle the deep layer (well) aeration technology was originally developed by british ici in the 1970s. this new sewage treatment process uses an underground deep well or ground high tower as an aeration tank for an efficient activated sludge system. when it is made
[2018-5-22]
first, favorable factors(i) the policy is positive.on december 31, 2016, the national development and reform commission and the ministry of housing and urban-rural development jointly issued the “13th five-year national urban wastewater treatment and recycling facilities construction plan”. the plan
[2018-5-21]
