Accidental Chlorine Emission Absorption Alkali

The absorbed alkali and acid are discharged into the sewer, which seriously pollutes the environment. The best way is not to discharge them and build a storage tank to store them.

Acidic water needs to be drained every day, and alkali absorption also needs to be drained at a fixed time. The storage tank is not stored.

Haven't you sold your absorptive alkali? Excluding it directly would cause too much environmental pollution, and it would be bad if the environmental protection department discovered it!

The acid water you are talking about may be chlorine water. There is no best way to dispose of chlorine water so far. The neutralized waste alkali liquid cannot be discharged in an organized manner and needs to be collected. We use different pipelines to transport it to the sewage treatment plant for blending and disposal.

Are you doing diaphragm electrolysis? You can buy bleach, which was very popular during SARS. Even if it's not easy to buy, you can't waste it by giving it away. Acid water can be recycled.

Generally, the acid water is sent to the transition tank, and then to the accident chlorine tower for neutralization, and the waste liquid is sold to private disposal.

Can’t the sodium hypochlorite produced from absorbed alkali solution be sold as a finished product?

Where is the acid water and HCL synthesized? We use sodium hypochlorite to absorb alkali and make it into finished products for sale, but the quantity is not large and easy to control. Fortunately, the quantity is not large and it only needs to be disposed regularly. But you can consider laying a pipe to the sewage treatment tank.

Now it seems that it can only be separated and transported to sewage treatment.

Recycling can be considered: Principle: Accident chlorine and acid react to form chlorine gas and salt. General process: add a packing reactor, acid (spent sulfuric acid or hydrochloric acid can be used) and water are mixed into the bottom of the reactor, and come out from the upper part, the pH is about 1. Accident chlorine is also added from the bottom with a pump, and the reaction control reactor pressure returns the chlorine gas from the top demister to the wet chlorine pipeline; the overflowing waste liquid needs to be blown away by factory wind to absorb the residual chlorine, and the residual liquid is sent to waste water. Need to calculate: ratio, acid, alkali, water ratio; residence time and mixing effect; the disadvantage is that too much salt is currently generated, and if the temperature is low, it will precipitate and block the pipeline.

Acid and chlorine water cannot be discharged into the same ditch. This is a matter of common sense! :handshake

The absorbed alkali solution produces sodium hypochlorite, which can continue to absorb chlorine until the free base is less than 1, and is sold as a finished product.

The current chlor-alkali industry focuses on zero emissions. Accidental chlorine absorption alkali can be pumped into a sodium hypochlorite device to produce sodium hypochlorite, which is sold as a product ； If the acid water you are talking about is wastewater containing sulfuric acid, of course it can be pumped into the waste acid storage tank and sold together with the waste sulfuric acid. ； If it is chlorine-containing water as mentioned above, you can add a pump to regularly pump the light salt water dechlorination device for dechlorination treatment and reduce consumption. The water after dechlorination treatment of light brine is then sent to the water distribution bucket to be desalted and recycled. The above are all for ion membrane caustic soda.