Wastewater treatment technology
Thread Content
What are the relatively mature wastewater treatment technologies available in China? What level of water quality standards can they achieve? How much do the treatment costs amount to? What types of wastewater can they handle? I’ve heard that AO biological treatment tanks are quite effective these days; could someone please give me some guidance?
Bro, you’ve set a too broad topic here. . . Wastewater treatment employs different processes for various types of wastewater. For example, domestic wastewater is usually treated using biological methods, and AO is one such process. Industrial wastewater, on the other hand, has a more complex composition; basically, each manufacturing enterprise uses a different wastewater treatment process. The treatment processes used can cover almost all types: biochemical, physicochemical, chemical, and physical. . Even combinations of several. For the treatment of landfill leachate, biochemical and physicochemical methods (membrane treatment) are generally used; other processes basically cannot meet the required standards.
The original poster could write a whole book on these issues – every industry has its own problems related to wastewater, and the quality of water varies from industry to industry, meaning that the treatment methods also differ; it’s not possible to cover them all here. The original poster should specify which industry or type of wastewater it is
What we are mainly concerned about is domestic wastewater and wastewater from the oil refining industry – can the wastewater treatment facilities meet the requirements for Class II water quality?
The mature wastewater treatment technologies used in China are typically activated sludge and its variant methods, such as CASS, oxidation ditches, SBR, and contact oxidation – all of which are established treatment techniques. Different treatment processes should be employed for different types of wastewater, ensuring not only technical reliability but also low operating costs.
Currently, domestic wastewater treatment is generally required to meet Grade B standards; in some areas, Grade A standards are even required. In terms of treatment efficiency, processes such as AO, oxidation ditches, SBR, UASB, along with BAF processes, can basically meet these requirements. It is also not a problem for oil refinery wastewater to meet Grade 2 standards nowadays. However, there are many different types of oily wastewater, and the choice of treatment method depends on the characteristics of the water quality
I’ve seen related answers in environmental protection and treatment technologies before; haha, if the topic of the post is too broad, it’s impossible to provide a solution. But the basic approaches are reduction, digestion, transfer, and removal
You’re using too much technical jargon – things like the AO process, oxidation ditches, SBR, UASB, along with the BAF process
Accelerating the process of urbanization is necessary to meet the demands of national economic development, as well as an requirement dictated by the objective laws of urbanization. The development of small towns is key to urbanization, and the quality of the water environment has a direct impact on their development. Therefore, wastewater treatment technologies, which serve as effective measures for managing water environments, are particularly important. Various specific wastewater treatment techniques include oxidation ditches, AB processes, sequential batch reactive sludge process (SBR), A/O and A2/O treatment processes, immobilized microorganism methods, LINPOR processes, membrane treatment processes, and biological fluidized bed technologies ；