xzbiosludge

Proper wastewater treatment is an important requirement to prevent waterborne diseases and maintain a healthy environment for organisms. A treatment process which involves microbes or living organisms is named as biological wastewater treatment. There are two types of biological waste water treatments namely aerobic wastewater treatment and anaerobic waste water treatment. Aerobic wastewater treatment is carried out by aerobic microorganisms.   Aerobic microorganisms require oxygen; hence, oxygen is supplied for aerobic wastewater treatment tanks. Anaerobic wastewater treatment is carried out by anaerobic microorganisms. Thus,  anaerobic wastewater treatment process  occurs without an oxygen supply. The key difference between aerobic and anaerobic wastewater treatment is that in aerobic wastewater treatment, treatment tanks are constantly supplied with oxygen while, in anaerobic wastewater treatment, gaseous oxygen is prevented from entering into the system. Anaerobic Gra...

  Anaerobic granular sludge treatment processes have been evolving, although the granulation process of anaerobic sludge is not well understood. In this review, up-flow anaerobic sludge tanks (UASB), expanded granular sludge tanks (EGSB) and static granular bed reactors (SGBR) are presented as representative components of anaerobic granular sludge treatment processes. The characteristics and application trends of each reactor are presented.The UASB reactor was developed in the late 1970s and its use has rapidly spread due to its excellent performance. With activated granules, this reactor can treat a wide range of high strength wastewaters and municipal wastewater. Most soluble industrial wastewaters can be effectively applied using UASB. the EGSB reactor was developed to provide more contact between the wastewater and the particulate matter. In this reactor, a fast rise rate separates the dispersed sludge from the mature particles. the EGSB reactor has shown excellent performance ...

  Wastewater originates from households, businesses, industry as well as storm drains and rainwater runoff. In general, wastewater contains approximately 99.9% water, with the remaining 0.1% representing dissolved solids or other suspended material. This material may include excreta, detergents from washing clothes and dishes, food residues, grease, oil, plastics, salt, sand, grit and heavy metals. Some wastewater from industrial or agricultural processes may also contain chemicals that may be harmful to the environment or public health and need to be neutralised or removed from the water before they can be safely reintroduced into the environment. The main objective of the wastewater treatment process is to purify the water and ensure that it is safe for subsequent use once it has been returned to the environment as part of the water cycle. Wastewater treatment involves several stages involving mechanical (physical), biological, chemical and membrane (filtration) based processes. ...