Catalytic oxidative treatment process for ship wastewater

Catalytic oxidative treatment process for ship wastewater

  • CN 104,556,499 A
  • Filed: 12/29/2014
  • Published: 04/29/2015
  • Est. Priority Date: 12/29/2014
  • Status: Active Application
First Claim
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1. catalytic oxidation treatment vessel sewage technique, is characterized in that:

  • treatment process processing step is as follows;

    (1), by sanitary sewage and changing food waste enter collection box, with sludge pump, former water extraction liter is delivered in waste water mixed grinding equipment, sanitary sewage and changing food waste are ground to form the particle of about 1-2mm;

    (2), then enter cyclic water tank, squeezing into high-pressure sealed electrooxidation device by sludge agitation pump, produce electrochemical reaction by applying high voltage effect;

    (3) inside electrooxidation device, form cracking, plug-flow, oxidation, sterilization, algae removal, be chemical energy electric energy conversion, add ozone simultaneously, a kind of dissolved oxygen form is formed in inside, redox reaction is carried out to the organic or inorganic thing in waste water, and then cohesion, pollutent is separated from water body.(4) any one, in final and iron pole plate or aluminum substrate, molysite or the aluminium salt of precipitation produce coprecipitated precipitation.(5), electrooxidation device top is provided with releasing pressure automatically valve, when internal pressure reaches certain value, releasing pressure automatically, relief pipeline is equipped with jet intake valve, by negative pressure introducing air, again further with efflux gas mixed oxidization, water outlet flows into water tank from top, carries out aeration, produce mud and discharge from bottom, through centrigugal swing dryer dehydration, mud is carried out mummification;

    (6), supernatant liquor filters through a kind of tubular membrane, and the clear water after tubular membrane flows into collecting tank, and can discharge also can reuse again, and concentrated stream returns concentration basin and does constantly circulation, and increase with concentration, concentrated water drainage goes out a part and does press filtration process.

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