CHEMICAL & PAINT–RESIN–SOLVENT INDUSTRY WASTEWATER

Special treatment solutions for chemical, paint, resin and solvent wastewater containing refractory organics, color and high organic load

In chemical and paint, resin, solvent production, wastewater flow and composition are highly variable due to batch-operated reactors, formula changes, line and reactor washing, filling-packaging, CIP/COP operations.

The resulting load; often contains refractory organics, color, high COD/BOD, oil-emulsion, TDS and potential toxicity.

In Turkey, the Water Pollution Control Regulation (SKKY) and local discharge regulations determine standards and limits for discharge and reuse standards. PİLSAN CONSTRUCTION designs, installs and commissions processes verified by laboratory and pilot studies as turnkey.

Typical Wastewater Characteristics (design initial ranges)

  • COD:

    ~1,000–20,000 mg/L

  • BOD₅:

    ~300–8,000 mg/L

  • TSS:

    ~100–3,000 mg/L

  • Oil–Grease (FOG)/Emulsion:

    ~50–1,000+ mg/L

  • Color:

    High

  • TDS/Conductivity:

    0.5–15 g/L

  • AOX/Phenol/VOC:

    Depending on process chemistry; toxicity risk

  • pH:

    2–12; Temperature: 20–60 °C

DESIGN PRINCIPLES FOR CHEMICAL INDUSTRY WASTEWATER

Capacity and Safety Margin
Hydraulic safety according to hourly peaks.
Control and Automation
SCADA, pH, conductivity, DO, NOx and ORP monitoring.
Toxicity Management
Acute, chronic toxicity monitoring, biological inhibition tracking with respirometry.
Compliance and Audit
Compliance with SKKY and OSB discharge conditions; pre-treatment guide and flow acceptance criteria for participating facilities.
Modularity
Infrastructure where additional modules or lines can be added for increasing capacity or tightening limits.

SERVICES WE OFFER

  • Sampling plan, determination of wastewater characterization and pilot treatability studies.
  • Feasibility, process design and 3D layout
  • Engineering designs, manufacturing, installation, commissioning and operator training
  • Operation support, chemical and energy optimization, remote monitoring

Chemical Industry Wastewater cannot be solved with a single recipe. Pilsan Construction; based on the principles of source separation and strong equalization, establishes a combination of physicochemical treatment specific to target pollutants, controlled biological treatment and advanced treatment; offers compliant, stable and sustainable solutions.