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Waste Water Treatment Plant


Waste Water Treatment Plant

PT Bayu Surya Bakti Konstruksi is working to develop a better Wastewater Treatment Plant (WWTP) and piping system. This not only aims to improve access to sanitation for the people of Indonesia, but also to effectively manage wastewater coming from various sources, such as industries, businesses, urban, residential, and dormitories. This aims to ensure that the quality of wastewater produced meets quality standards before it is discharged into the environment or reused.

Wastewater Treatment Plant with Membrane Bio Reactor (MBR) Technology Wastewater Treatment Plant with Moving Bed Biofilm Reactor (MBBR) Technology Wastewater Treatment Plant with Extended Aeration System (EA) Technology

The technology known as Membrane Bio Reactor (MBR) is reliable and has applications in sewage treatment. This technology combines biological processes and membrane filtration. The limitations of conventional approaches, such as the requirement for large areas for secondary clarification, solids separation, as well as massive activated sludge formation, have been effectively overcome by MBR technology.

Working Principle of Membrane Bio Reactor (MBR)

The membrane-bioreactor is a modified process of the Conventional Activated Sludge (CAS) method. The core principle is to replace the secondary settling tank with MBR membranes to reduce floor space and sludge volume. A combination with microorganisms needs to be used in this process.

Advantages of MBR vs CAS System

Improved Effluent Quality, Smaller land area (compact footprint), Reduced Sludge Production, Reduced TSS & BOD levels, Improved pathogen removal, potential water reuse

Applications of MBR Systems:

  • Suitable for use in urban wastewater treatment plants, eg: Jakarta Sewage System
  • Suitable for use in factory and industrial wastewater treatment plants
  • Suitable for use in residential wastewater treatment plants, hospitality areas
  • Suitable for use in wastewater treatment plants that have a small land area
  • Suitable for use in wastewater treatment plants (water reuse) for non-portable use such as irrigation, cooling towers and industrial processes.

Conventional Activated Sludge (CAS) Process Flow

Membrane Bio Reactor (MBR) Process Flow

Wastewater treatment with moving bed biofilm reactor (MBBR) technology is used to treat biological waste, industrial waste, and other contaminated water. To remove organic matter, nutrients, and other pollutants from water, it uses the principles of suspended growth and attached growth processes. The MBBR system differs from the use of plastic carriers or media in a moving reactor inside the treatment tank (attached growth reactor), which provides a surface that allows microorganisms to multiply.

Working Principle of Moving Bed Biofilm Reactor (MBBR)

The main principle is to use a membrane as a carrier to improve treatment efficiency and increase the content of unit microorganisms in the reactor.

Advantages of Moving Bed Biofilm Reactor (MBBR) System

  • Less Space Requirement
  • Less Sludge formation
  • Lifetime duration of MBBR media is long
  • Less power consumption
  • Less maintenance
  • Responds to load fluctuations without operator intervention
  • can reduce BOD, COD, TSS, and soluble influent and oil between 60 to 80 percent.

Applications of Moving Bed Biofilm Reactor (MBBR) System

  • Domestic wastewater in residential and commercial buildings
  • Condominiums & housing projects
  • Hospitals, hotels & resorts, shopping centers
  • Small to medium factories and manufacturing scale

Wastewater Treatment Plant with Extended Aeration System Method is one of the modified systems of the "Activated Sludge" method which aims to assist the biological treatment process of aerobic biodegradable organic pollutants. The system includes aeration and mixing, sedimentation, sludge recycling, and solid matter removal.Mechanical aeration can incorporate oxygen or be dispersed to support aerobic biological functions. Mechanical aeration or mixing processes are necessary to ensure that microbial organisms remain in contact with dissolved organic matter. In addition, regulating pH levels is essential to improve the efficiency of the biological process, and vital nutrients must be available to promote biological growth and continued degradation of organic matter.

Working Principle of Extended Aeration System (EA)

Theoretically, the advanced aeration method uses air to break down organic substances, cleaning wastewater by converting volatile compounds, both in solid and liquid form, into inert gas, water, and sludge. Consistent aeration of these concentrated solids promotes the development of microorganisms, which form colonies. These colonies adhere to the volatile substances, decomposing them into water, carbon dioxide, and ash. The result is clear, odor-free wastewater.

Advantages of Extended Aeration (EA) System

  • Easy to maintain mechanical duty
  • Due to the longer retention time of nutrients to be taken up by microbes, the extended aeration process often handles organic loads and flow fluctuations better.
  • These odorless systems have a relatively small area footprint and can be set up to match the surrounding environment. They can be installed in most places.
  • Due to the long sludge life, extended aeration systems produce relatively low sludge and can provide nitrification without the need for primary clarifiers.

Applications of Extended Aeration (EA) System

  • This system can be applied from wastewater treatment systems in hospitals, settlements, housing complexes, schools, amusement parks, elderly care facilities, factories, and various other commercial activities around neighborhoods that are not equipped with urban sewerage systems.
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