Sewage treatment equipment in Iran

ClearFox® SBR system as sewage treatment equipment at an oil refinery worker camp

Project Details

Size
32 PE
Location
Iran
Completed
2022

Project Delivery

Features
Underground installation
Treatment for irrigation of the green areas
Treatment Modules
ClearFox® SBR
UV disinfection
Storage tank

Project Results

Before
After
COD
1500 mg/l
450 mg/l
BOD
500 mg/l
30 mg/l

Discussion

Situation

Sewage treatment equipment is an important tool in arid countries like Iran to counteract the ongoing water shortage in the country. Especially the south of Iran, which has been affected by a severe drought for years. The government is therefore imposing increasingly stringent requirements, requiring businesses to use sewage treatment equipment to treat their wastewater for reuse. 

Both businesses and individual homes are typically not connected to a municipal wastewater treatment plant in Iran. While in urban areas about 50 percent of all buildings are connected to the public sewage network, in rural areas it is just one percent. Having one’s own sewage treatment equipment is therefore particularly important in rural areas to protect nature and the seas from pollution. 

Problem

The employees of an oil refinery in southern Iran produce wastewater every day that is not allowed to flow into the environment without treatment. The refinery is located directly on the Persian Gulf, so failure to treat the wastewater would result in pollution of the estuary. However, since the employees of the oil refinery are not experts in the field of wastewater treatment, the sewage treatment equipment must be particularly reliable and require minimal maintenance. 

Solution

The solution for this project consisted of three parts: At the beginning, the wastewater flows into a concrete storage tank, from which it flows into an SBR system installed underground. The ClearFox® SBR system aerates the wastewater at regular intervals. This causes the microorganisms in the wastewater to grow and purify it biologically. After treatment, a UV disinfection additionally purifies the wastewater. This makes the wastewater suitable for irrigation of green spaces, which helps the company meet government requirements.

FAQ

Yes, the ClearFox® SBR system is extremely flexible and can be adapted to different requirements. Whether it is industrial, commercial or residential applications, the system can be scaled according to the amount of wastewater and the type of pollution.

The ClearFox® SBR system is low maintenance and designed to operate for extended periods without constant monitoring. The main tasks are limited to occasional cleaning of the UV disinfection unit and regular inspections.

The system is suitable for domestic, commercial and industrial wastewater. It can handle a wide range of contaminants, including organic loads, oil and grease, as well as specific requirements such as those found in refineries.

Installation time depends on the size and individual requirements of the project. Typically, small to medium-sized systems can be installed and commissioned within a few weeks.

Yes, the system can be easily integrated into existing infrastructure. Existing storage tanks or sewage pipes can often be reused, reducing overall costs.

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