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Installation and Maintenance Best Practices for Loose Flange Connections

Installation and Maintenance Best Practices for Loose Flange Connections

Apr 09,2024

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Types of dissolved air flotation


The dissolved air flotation types can be divided into 4 kinds: full flow pressurized, reflux type, partial raw water type and pressurized air type. Below will introduce such 4 kinds in brief:


1. The full-flow pressurized dissolved air flotation method has a large dissolved air volume and requires a small flotation tank volume, which is widely used in oilfield wastewater treatment.


2.Return flow type dissolved air flotation method is part of the purified water back to the dissolved gas tank pressure dissolved gas, and then with the incoming liquid into the flotation cell, so it can be used in the case of raw water need to pre-coagulation and raw water oil content is relatively high.


3.The partial raw water type dissolved air flotation method is similar to the full flow pressurized dissolved air flotation method and is more suitable for treating oilfield wastewater with low oil content.


4.The pressurized dissolved air flotation method is used to press the gas into the liquid through a porous disc, porous plate or a special nozzle, which has a shorter residence time than several other dissolved air flotation processes.


Dissolved Air Flotation (DAF) is a proven and effective water treatment process to clean wastewater, pls choose your needed DAF system according to you actual application field.



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