Wastewater

Initial Concept Planning

Tertiary treatment is designed based on physical and chemical method, ultrafiltration and reverse osmosis system. Two modules are considered for this plant with average flowrate 10000 m3/d. Type of agreement for this project is EPC.

Drafts & Revisions

This review has discussed Physical and chemical system including coagulation, flocculation, Dissolved Air Flotation, filtration, ultra filtration and reverse osmosis system and also sludge processing unit in order to reuse of effluent wastewater treatment plant and to reduce the pollution load. This wastewater treatment plant has not been completed and effluent should be met standard of reuse as make up water in power plant.

Other information

Advanced treatment plant is constructed for reusing of treated wastewater. There is a complete process arrangement for treating in order to meet requirement for reuse. Wastewater treatment plant effluent is stored in a storage tank. Disinfection is done by injection of calcium hypochlorite 10% to storage tank.

Initial Concept Planning

Wastewater treatment plant is designed based on anoxic and MBBR method with phosphorous, nitrogen and BOD removal. One module is considered for this plant with average flowrate 200 m3/d. Type of agreement for this project is EPC.

Drafts & Revisions

This review has discussed pretreatment system, anoxic and moving bed bioreactor system, disinfection unit and sludge processing unit in order to use effluent wastewater treatment plant and to reduce the pollution load. Treated wastewater characteristics have been controlled strictly and meet the standard of discharging to River.

Other information

The raw wastewater enters to raw wastewater inlet tank which is equipped with basket screen. The basket screen type is provided to remove any large solids from the incoming raw wastewater with bar space 20 mm. Screening unit is required in order to protect process equipments in the following. The screen is cleaned daily and manually when it is necessary.

Initial Concept Planning

Tertiary treatment is designed based on physical and chemical method and also reverse osmosis system. Two modules are considered for this plant with average flowrate 18000 m3/d. Type of agreement for this project is EPC.

Drafts & Revisions

This review has discussed Physical and chemical system including screening, oil removal system, flash mixing, clariflocculation, lime soda softening, filtration, reverse osmosis system and also sludge processing unit that can be adopted to reuse industrial wastewater treatment plant effluent and to reduce the pollution load. Treated wastewater characteristics have been controlled strictly and meet the standard of reuse as make up water in iron and steel industry.

Other information

The raw wastewater enters manual coarse screen with bar space 20 mm used to protect process equipment from big solids. Collected screening is transferred to rubbish mobile container manually.

Initial Concept Planning

Tertiary treatment is designed based on physical and chemical method. Two modules are considered for this plant with average flowrate 6048 m3/d.. Type of agreement for this project is EPC.

Drafts & Revisions

This review has discussed pretreatment system including micro drum filter, disinfection unit (Ozonation system) in order to reuse municipal wastewater treatment plant effluent and to reduce the pollution load. Treated wastewater characteristics have been controlled strictly and meet the standard for irrigation.

Other information

The aim of this project is tertiary treatment of treated municipal wastewater through combined method including filtration and ozonation. In order to optimize the amount of ozone injection, wastewater is transferred to micro drum filter. The filtration unit consists of two micro drum filter units located inside the reservoir. Filter is equipped with horizontal axis of rotation.

Initial Concept Planning

Wastewater plant is designed based on biological aerated lagoon method unit with the removal of BOD. Two modules in two steps are considered for this plant with average flowrate 21000 m3/d. Type of agreement for this project is EPC.

Drafts & Revisions

This review has discussed pretreatment system, pump station, aerated lagoon, and disinfection system in order to use municipal wastewater treatment plant effluent and to reduce the pollution load. Treated wastewater characteristics have been controlled strictly and meet the standard of irrigation and discharging to surface water.

Other information

The raw wastewater is entered to mechanical fine screen with bar space 10 mm and manual coarse screen with bar space 25 mm which is considered as mechanical fine screen stand by. Collected screening is transferred to screw compactor. The screens are compacted and transferred to rubbish mobile container.

Initial Concept Planning

Wastewater plant is designed based on extended aeration including Anoxic and Aerobic unit with the removal of BOD and Nitrogen. Two modules are considered for this plant with average flowrate 6000 m3/d. Type of agreement for this project is EPC.

Drafts & Revisions

This review has discussed pretreatment system, MLE, disinfection system, Sludge processing unit that can be adopted to use municipal wastewater treatment plant effluent and to reduce the pollution load. Treated wastewater characteristics have been controlled strictly and meet the standard of discharging to surface water.

Other information

The raw waste water is entered to Manual coarse screen with bar space 30 mm and Mechanical fine screen with bar space 5 mm. one Manual Medium screen with bar space 15 mm is considered as mechanical fine screen stand by. Coarse screens are used to protect mechanical fine screens.

Initial Concept Planning

Wastewater plant is designed based on anaerobic (Upflow Anaerobic Baffled Reactor) and aerobic (Sequencing Batch Reactor) biological methods. Two modules are considered for this plant with average flowrate 6500 m3/d. Type of agreement for this project is EPC.

Drafts & Revisions

This review has discussed pretreatment system, Upflow Anaerobic Baffled Reactor, Sequencing Batch Reactor, disinfection system, Sludge processing unit that can be adopted to use municipal wastewater treatment plant effluent and to reduce the pollution load. Treated wastewater characteristics have been controlled strictly and meet the standard of discharging to river.

Other information

The raw wastewater is entered to Manual coarse screen with 50mm bar space and mechanical screen with bar space 20 mm. one Manual screen bar space 20 mm is considered as mechanical screen stand by. The screens are compacted and transferred to rubbish mobile container through belt conveyor. 

Initial Concept Planning

Wastewater plant is designed based on extended aeration including Anoxic and Aerobic unit with the removal of BOD and Nitrogen. Two modules are considered for this plant with average flowrate 7020 m3/d. Type of agreement for this project is EPC.

Drafts & Revisions

This review has discussed pretreatment system, Extended Aeration, disinfection system, Sludge processing unit that can be adopted to use municipal wastewater treatment plant effluent and to reduce the pollution load. Treated wastewater characteristics have been controlled strictly and meet the standard of discharging to surface water.

Other information

The raw wastewater is entered to manual coarse screen with bar space 40 mm and Mechanical fine screen with bar space 10 mm. one Manual screen with bar space 20 mm is considered as mechanical fine screen stand by. Coarse screens are used to protect mechanical fine screens.

Initial Concept Planning

After conducting a feasibility study to assess the advantages and disadvantages of different process methods, Advanced Sequencing Batch Reactor method with capability of BOD and Nitrogen removal has been chosen. Type of agreement for this project is BOT (Build-operation-transfer).

Drafts & Revisions

This review has discussed pretreatment system, Advanced Sequencing Batch Reactor, disinfection system, Sludge processing unit in order to use municipal wastewater treatment plant effluent and to reduce the pollution load. Treated wastewater characteristics have been controlled strictly and meet the standard of discharging to River.

Other information

Raw wastewater is entered the treatment plant at inlet structure by two corrugate PE pipes DN1000 and DN600. This structure is equipped with Inlet structure sluice gate and bypass sluice gate for transferring of wastewater to W.W treatment plant or bypass line.