1. Profile

(1) Project site:

The project is located in Juba, the capital of South Sudan.

(2) Owner:

UN Peacekeeping Forces

(3) Capacity:

30 t/d domestic sewage treatment with peak flow of 50 t/h.

(4) Date of operation:

November 2011.

(5) Investment, construction and operation:

It was invested and operated by the Owner, and Jiangxi JDL Environmental Protection Co., Ltd. provided construction, installation and commissioning services.

2. Major environmental problems to be addressed

Purify and treat domestic sewage generated from bath and other daily living activities of the barracks accommodating 200 soldiers, and effectively solve the pollution brought about by the base of UN peacekeeping forces.

3. Environmental standards and/or main index limits to be followed

According to UWWTD, 91/271 EEC, pH 6-9, COD_cr≤125mg/L, BOD₅≤20mg/L, SS≤20mg/L, NH₃-N≤15mg/L, TP≤2mg/L.

4. Technological process

Influent→bar screen→FMBR→effluent.

5. Environmental pollution control effects

For the influent, pH6-9, COD_cr≤650 mg/L, BOD₅≤250 mg/L, SS≤250 mg/L, NH₃-N≤65 mg/L, TP≤55 mg/L, water temperature of 0-50℃; For the effluent after treatment, pH6-9, COD_cr≤30 mg/L, BOD₅≤15 mg/L, no SS, NH₃-N≤15 mg/L and TP≤2 mg/L. The direct discharge of effluent did not pollute the surrounding environment and could also be used as toilet flushing water. FMBR was provided with an automatic control system, and therefore needed no special supervision during stable operation after commissioning, and no organic sludge was discharged.

6. Social benefits

The UN peacekeeping forces play an important role in preventing local conflicts from expanding. The project solved the problem of pollution to the surrounding environment caused by domestic sewage generated by the base, which could help building good relations between the troops and the local residents, establishing a good international image and providing logistical support for the UN peacekeeping forces.

7. Economic benefits

No direct economic benefits.

Project significance: The effective treatment of domestic sewage from the barracks can not only realize recycling of water resources, alleviate the local water crisis and improve the water ecological environment, but can also help UN peacekeeping forces to establish a good international image and have a positive significance in improving their influence. The project is also a model for the application of integrated domestic sewage treatment equipment.