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Nov 10
2019Design description of technological process of mine wastewater treatment by a...
Design description of technological process of mine wastewater treatment by air flotation + filtration process1. Catch basinThe sewage enters the sump through the grid, and a submersible sewage pump is set in the sump to lift the sewage into the mixi... -
Nov 10
2019The comparison of dissolved air floatation method and precipitation method
The comparison of dissolved air floatation method and precipitation method1. The test process and equipment test raw water is Songhua River water.The size of the rapid mixing tank is 200mm × 200mm × 200mm, the size of the reaction tank is 300mm × 300... -
Nov 04
2019How to carry out technical treatment of Oilfield Industrial Wastewater
Most of the oilfields in our country are exploited by water injection (water injection fracturing). Each ton of source oil is produced by water injection of about 2-3 tons. Therefore, in the source oil exploitation, the production wastewater also ent... -
Nov 04
2019Source of papermaking wastewater
Source of papermaking wastewaterThe quality of wastewater is related to the quantity of wastewater discharged and the quantity of wastewater produced. The quantity of wastewater produced is affected by the raw materials and the yield of pulping. At t... -
Nov 04
2019Problems in the selection of advanced treatment process for desulfurization w...
Problems in the selection of advanced treatment process for desulfurization wastewater1. Determination of desulfurization wastewater2. The influence of MgO content in desulfurizer limestone on the operation cost of advanced treatment of desulfurized ... -
Nov 04
2019Research status of MBR process
Since the 1980s, membrane bioreactor has been paid more and more attention and become one of the research hotspots. At present, the technology has been applied in more than ten countries, such as the United States, Germany, France and Egypt, with the... -
Nov 04
2019Classification of membrane bioreactor
Classification of membrane bioreactorMembrane bioreactor is a new technology of wastewater biological treatment, which is composed of membrane separation and biological treatment technology. There are many kinds of membrane, classified according to t... -
Nov 04
2019The significance of treatment of papermaking wastewater
There will be a lot of waste water and sewage in the papermaking industry. The organic matter in the waste water accounts for 25% of the total organic matter in the domestic industrial waste water, which has a very serious impact on the natural ecolo... -
Nov 04
2019Sludge age contradiction in traditional A2O process
Traditional A2 / O process is a single sludge system, in which functional microorganisms such as PAOs, denitrifying bacteria and nitrifying bacteria grow in the same system, while the sludge age required for various microorganisms to maximize their f... -
Nov 04
2019The residual interference of do mainly includes:1) based on the analysis of oxidation capacity data of molecular oxygen (O2) and nitrate (NO3-N) as electron acceptors, the capacity of O2 as electron acceptor is about 1.5 times of that of no3-n. there... -
Nov 04
2019Simultaneous nitrification and denitrification (SND) process
According to the traditional biological denitrification theory, denitrification generally includes two stages of nitrification and denitrification. Nitrification and denitrification need to be carried out in two isolated reactors, or in the same reac... -
Nov 04
2019Short cut nitrification and denitrification (Sharon) process
SHARON process, short cut nitrification and denitrification process, is a new biological denitrification process proposed and developed by Delft University of technology in the Netherlands in 1997. The basic principle is that in the same reactor, und... -
Nov 04
2019Meaning and source of coking wastewater
In order to study the treatment process of coking wastewater, we first need to know what is coking wastewater. It is a kind of water used in the initial cooling of coke oven gas and coking production process or a kind of wastewater condensed by steam... -
Nov 04
2019Membrane bioreactor (MBR) and its application
MBR is a membrane bioreactor, which is a new sewage treatment technology combining membrane separation unit and biological treatment unit. It uses microfiltration membrane separation technology to replace the sedimentation tank and conventional filtr... -
Nov 04
2019Treatment of cyanide containing wastewater
The combination of chlorine and oxygen or chlorine treatment, ozone and other treatment methods are used to treat cyanide containing wastewater.The treatment of cyanide containing wastewater consists of two parts:Firstly, cyanide is oxidized to form ... -
Nov 04
2019Ecological and nutritional structure of halophilic bacteria
Ecological and nutritional structure of halophilic bacteriaHalophilic bacteria are Gram-negative bacteria, most of which are good at gasifying and heterotrophic, and can use a wide range of carbon sources, which are suitable for alkalescent environme... -
Nov 01
2019Air intake mode and debugging of air flotation machine
Air intake mode and debugging of air flotation machineThere are two kinds of air intake modes for the air floatation machine, i.e. the air before the pump and the air inlet after the pump. The air floatation machine pumps forward gas, which is led ba... -
Nov 01
2019The method of air distribution and gas depression for shallow air flotation a...
The method of air distribution and gas depression for shallow air flotation and the characteristics of bubble formationShallow air flotation is an excellent sewage treatment technology, which is reasonable in design, convenient in operation and econo... -
Nov 01
2019What is the difference between dissolved air flotation and cavitation air flo...
What is the difference between dissolved air flotation and cavitation air flotationDissolved air floatation is generally a kind of partial reflux pressurized dissolved air floatation, which can be divided into several categories. After air floatation... -
Nov 01
2019Air dissolving method and application scope of each air flotation machine
Air dissolving method and application scope of each air flotation machineThe air floatation machine is a kind of equipment to remove the solid suspended matter, grease and all kinds of colloidal matters in various industrial and municipal sewage. The...
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