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Centrifugal extraction equipment application in H acid waste water treatment

by:Deyuan      2020-09-07
H acid is a kind of very important of naphthalene series dyestuff intermediates, which are widely used in the production of acid, reactive dyes, also can be used in the pharmaceutical industry. In the analysis process with sulfuric acid or hydrochloric acid precipitation H acid monosodium salt, filtered from waste mother liquor is a high concentration, high acidity, high salinity and high chroma H acid production wastewater, if not governance will damage to the environment.

through long-term experiments, H acid waste water used in the process of dealing with the extraction method is more appropriate. Extraction is a kind of suitable for processing large biological toxicity, high concentration of organic matter, CODCr is hard to biodegradable waste water, the method of extraction production of centrifugal extraction equipment through the screening of zhengzhou days suitable extractant, using complexation extraction, treatment effect is good.


. cwl - Working principle of the M series centrifugal extraction machine

H acid wastewater treatment process:

( A) Extraction section

in H acid wastewater treatment process, complexation extraction method is used, use two stage cross-flow extraction technology for processing. H acid wastewater after PH adjustment, the extracting agent with waste mother liquor according to certain proportion into the centrifugal extraction machine, by using the body's internal mass transfer, and under the action of centrifugal force to separate naphthalene sulfonic acid type organic matter in wastewater.
 
   ( 2) Reverse extraction section

back extraction using level of cross-flow extraction, high concentrations of reverse extraction solution was isolated, and after a subsequent section concentration extraction liquid production of naphthalene series water reducing agent.

the graph H acid waste water treatment process diagram

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