TDI wastewater treatment method

This article describes a TDI wastewater treatment method, including cooling, catalytic reduction, catalytic oxidation, neutralization flocculation and sedimentation, membrane bioreactor, ozone-biological activated carbon and other processes.

The specific process is as follows: the sewage is first cooled, and the activated iron and the anti-plate-like supplementary filler are added to the catalytic reduction device. The catalytic oxidation tank is filled with a catalyst and an inert agent, and the mixture is evenly mixed at a ratio of 1:1 and simultaneously added. Hydrogen peroxide is used as an oxidant. After neutralization flocculation and precipitation, it enters the membrane bioreactor for treatment. After ozone-activated carbon treatment, it can be reused as the source water for reuse. The waste water treated by the method of the present invention has a COD removal rate of 99.5%, COD, color, and aniline and nitrobenzene. The detection completely meets the national emission standards, and there is no secondary pollution to the environment.

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Kitchen faucet. Installed on the kitchen sink, used to put cold water, hot water or a mixture of hot and cold water. Its structure includes: screw lift type, metal ball valve type, ceramic spool type, etc. The valve body is made of brass, chrome-plated, gold-plated and various metal lacquers. The shape is various, the handle has a single, double handle of the points.

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