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Containerized greywater treatment plant for coal mining company


Industry

Municipal Utilities Sector

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 1200 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


Summarise


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.


GreenFort-Membrane-bioreactor-series-MBR_Municipal-Utility-Sector
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