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Petrochemical Industry

Home Domain Domain expertise Petrochemical Industry

The effluent from this industry is come from furnace/reactor residue and debris, tarry residues, oily sludge emulsion, organic residues, residues from alkali wash of fuels, still bottoms from distillation process, spent catalyst and molecular sieves, slop oil from wastewater, etc.

After the solids are removed by a mechanical separation, the next few stages, comprising automatic and flotation oil sucking processes, remove the oil to an oil storage tank. Water, from which oil has been removed, flows into an anaerobic system where it is treated by microorganisms in the absence of air. The treated water enters the aerobic treatment stage, where the contents are aerated by the bubbling of air. The flocs that created are collected in sedimentation tanks, generally referred to as Secondary Sedimentation Tanks. The flocs are large enough to settle to the bottom of coagulation tanks as sludge. The sludge removed by the scroll is dewatered and compacted. The dewatered sludge can either be dumped, dried or incinerated. The high quality permeate stream is finally discharged for reuse.

The waste water treatment method includes collection allowing different streams to be collected separately, routing, and treatment. Dependent of the degree of the (required) treatment the following steps are distinguished:

  1. Primary treatment (API/CPI/PPI separator, sour water strippers, buffer tanks)
  2. Secondary treatment (coagulation flocculation-flotation, biological treatment)
  3. Tertiary treatment (sand-filtration, membrane-filtration, chemical oxidation)
Sr. No. Parameter Unit Concentration range
 1 Color - Dark brown
 2 pH - 6-9
 3 Total solid mg/lit 100-400
 4 Oil/Grease mg/lit 30-600
 5 BOD mg/lit 1500-1600
 6 COD mg/lit 1500-6000
 7 Phenol mg/lit 200
 8 Boron mg/lit 100
 9 Benzene mg/lit 100


Problems in ETP:

  • High pollution load and have continued to pose a critical problem of environmental pollution
  • High temperature of the wastewaters may instantaneously kill fish and other aquatic organisms, thus destroying the flora and fauna of a river, when the wastewaters are discharged into it
  • High volume of effluent to be handling
  • More chemical usage for neutralization
  • High concentration of readily decomposable organic matters
  • Foul smell due to decomposition of soluble and suspended organic matters present in the waste waters
  • Presence of refractory compounds
  • High operating treatment cost
  • Low yield of biogas due to byproducts

Solution using HyCator® reactor system:

HyCa Technologies have a range of products which are environmentally safe and cost effective for effluent treatment of Petrochemical Industry. We generally suggest HyCator® reactor systems to effluent treatment plants in the following manners but it varies as per the client requirements and limitations.

The applications of HyCator® reactor at effluent treatment plant are listed below:

  1. HyCator® MBD will increase digestibility of the effluent in UASB digestor and aerator by breaking long-chain / polymeric/ refractory compounds and thus reduce the COD and increase the Biogas production. HyCator® MBD can also be installed in the inlet effluent streams (High load) / neutralization tank or recycle stream of effluent, if any.
  2. HyCator® OLM will ensures energy efficient, precise, microlevel, online mixing even at very high flows. It will help to reduce the chemicals in neutralization and subsequent processes.
  3. HyCator® DOB will increase the dissolved oxygen content in aerator tanks in compared to conventional surface aerator or diffused aerator and also increase the activity of microbes by de-flocking it. Thus results in reduction in sludge generation, hence lesser load on clarifiers and less solid disposal issues.

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    Goregaon (E), Mumbai - 400 063, INDIA