Containerized greywater treatment plant for coal mining company
Industry
Type
Biological Wastewater treatment
Task
To implement Containerized Wastewater Treatment plant for company wastewater treatment fulfilling the requirements for the effluent to be disposed into the river.
Water source
Greywater
About the project
The wastewater treatment plant consists of mechanical pre-treatment, equalizer tank, and the biological wastewater treatment plant.
Facts and figures
Mechanical pretreatment m3/day 1 200
Membrane bioreactor m3/day 600
Activated carbon filtration m3/day 800
Facts and figures
| Parameter | Unit | Influent | Effluent |
| Suspended solids | mg/dm3 | 165 | ≤ 2,0 |
| Oil products | mg/dm3 | 0,46 | ≤ 0,05 |
| Total iron (Fe) | mg/dm3 | 0,80 | ≤ 0,1 |
| Manganese (Mn) | mg/dm3 | 0,060 | ≤ 0,01 |
| Copper (Cu) | mg/dm3 | 0,003 | ≤ 0,001 |
| Nickel (Ni) | mg/dm3 | 0,005 | ≤ 0,002 |
| Phosphates | mg/dm3 | 0,31 | ≤ 0,05 |
| Nitrite nitrogen | mg/dm3 | 1,30 | ≤ 0,073 |
| Nitrate nitrogen | mg/dm3 | 17,0 | ≤ 2,77 |
| Ammonium nitrogen | mg/dm3 | 12,5 | ≤ 0,40 |
| BOD | mg O2/dm3 | 28,2 | ≤ 3,0 |
| Phenols | mg/dm3 | 0,001 | ≤ 0,001 |
| Chromium | mg/dm3 | 0,005 | ≤ 0,002 |
| Zinc | mg/dm3 | 0,08 | ≤ 0,01 |
Summarize
This project was a challenge for our engineers because of source greywater differed from the domestic greywater characteristics: BOD was very low, high pH indicator, a large ratio of COD/BOD, which is atypical for greywater, and there were other pollutants, typical for industrial wastewater. Our engineers designed the containerized wastewater treatment plant with the Membrane bioreactor (MBR) with the flat sheet type MBR membranes. We have not only to meet the strict effluent requirements but also to make our equipment fit in the space-limited container.
The project was implemented successfully. The containerized wastewater treatment plant is reliably operating in a continuous mode and the treated effluent fulfills the requirement to be disposed into the river.
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