INDUSTRY SOLUTIONS FOR WASTEWATER TREATMENT

BIODIESEL WASTEWATER
TREATMENT SOLUTIONS

Biodiesel facilities take a lot of cooperation to operate. You need farmers, co-ops, financing, good feed stock, and a wastewater treatment system that can handle the demand.

CASE STUDY

Biodiesel Wastewater Treatment Solutions

ENERGY INDUSTRY WASTEWATER SOLUTIONS

Biodiesel Wastewater Solutions Using GEM® – Biodiesel facilities take a lot of cooperation to operate. You need farmers, co-ops, financing, good feed stock, and a wastewater treatment system that can handle the demand.

Challenge

Three specific biodiesel streams were explored by CWT’s Chief Scientist:

  • Stream 1: The “hot well” stream proved to be the most challenging.
  • Stream 2: The “wastewater stream”, consisting of runoff from the hot well, glycerin room, and storm drains proved less challenging but the processor was hauling six tanker trucks of wastewater a day to a site over 85 miles away!
  • Stream 3: While the “protein scrubber” from the crush process produced low levels of FOG and COD, further reductions of TSS were required as the water discharged to the municipality.
Annotated diagram of a Dissolved Air Flotation (DAF) system. The diagram clearly labels the LSGM Heads, Inlet of Chemical, Effluent, Sludge Hopper, Control Panel, Air Compressor, Sludge Pump, and Feed Pump, all essential components of the water treatment process by CWT Global.
Two glasses of water, one cloudy, one clear. Illustrates the impact of CWT Global's wastewater treatment technologies in achieving clean water for industrial applications in the US.

Solution

An onsite demonstration was performed by CWT. All the water generated from the biodiesel site was easily treatable in the GEM® System which would save hauling and surcharges. The ROI was 14 months.

A GEM® System 20/75 was installed with a screen, equalization (EQ) tank, a D-Loop and pH system, two chemical systems and a cone-bottom sludge tank. Rather than hauling 36,000 gpd of wastewater, the client saved time and money due to the advanced efficiencies of the GEM® System.

CWT Industrial Wastewater Leaders

Key Advantages

  • Clean water for reuse.
  • Sustainability goals met.
  • Less chemical use.
  • Adaptable system is able to expand.

TSS/ppm

4,800

19

99%

pH 9.0 800/40/15

COD/ppm

42,700

2,630

94%

pH 9.0 800/40/15

Turbidity/ppm

7,140

10

99%

pH 9.0 800/40/15

TSS/ppm

200

17

91%

pH 5.5
0/20/10

COD/ppm

2,560

190

69%

pH 5.5
0/20/10

Turbidity/ppm

434

30

93%

pH 5.5
0/20/10

TSS/ppm

183

0

100%

pH 5.5
0/50/10

COD/ppm

860

650

24%

pH 5.5
0/50/10

Turbidity/ppm

130

26

80%

pH 5.5
0/50/10

Conclusion

Sustainable clean water with less chemical use with an adaptable system ready to expand when needed.

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