The poor effluent quality fails to meet authorities' standards and regulations. As a result, advanced wastewater treatment technologies are required to reduce suspended solids, BOD, nutrients, and toxins in wastewater generated in domestic, industrial, and agricultural fields, as well as to eliminate various pollutants.
The objective of advanced technologies for wastewater treatment
Aside from the removal of pollutants in wastewater, the primary goals of using advanced wastewater treatment technologies include non-toxic, but environmentally friendly processes and environmental protection.
It also includes innovative wastewater solutions for cost-effective and long-term wastewater treatment.
What are the advanced technologies for wastewater treatment?
1- Membrane Bio-Reactor Technology – MBR
MBR, or Membrane Bio-Reactor Technology, combines the traditional activated sludge treatment process with filtration. A membrane acts as a barrier in this system, assisting in sludge separation and retaining all particle types and microbes, resulting in superior wastewater treatment objectives.
Because, it is less expensive and uses less energy, an immersed process configuration of biomass rejection in MBRs is commonly used. It is a modern wastewater treatment technology that is more effective.
2- Moving Bed Biological Reactor – MBBR
The Moving Bed Biological Reactor (MBBR) is a high-performance, widely used biological treatment process, which combines the activated sludge and bio-filtration processes. This wastewater treatment method is extremely effective for industrial wastewater treatment.
The main advantage of MBBR is that it has a continuously moving biological reactor in which biomass grows, on plastic carrier elements with a higher density than water. The aeration system allows for constant movement.
3- Sequencing Batch Reactors – SBR
In many ways, Sequencing Batch Reactors are similar to the activated sludge process. Unlike ASP, which uses multiple basins, the SBR system uses a single basin for all treatment steps such as filling of the basin with wastewater, react phase with mixing and aeration, settling of activated sludge, decantation process, and wasting, which removes a small amount of activated sludge.
Up flow Anaerobic Sludge Blanket (UASB) anaerobic digesters are popular and high-performance anaerobic digesters, for wastewater treatment. When compared to other anaerobic processes, it has 75% COD removal efficiencies, low operational costs, energy recovering technology, a low initial investment, easy maintenance, and a low energy requirement.
Reducing energy consumption and maximizing efficiency, can also help to make wastewater treatment more cost-effective.
The addition of chemicals to promote coagulation and flocculation can remove both suspended and colloidal solids. Following the formation of the flocs, the solution is directed to a settling tank where the flocs are allowed to settle.
While, the majority of the flocculated material settles in the settling tank, some floc does not. These flocs are removed during the filtration process, which is typically performed using porous media beds, such as sand or coal.
The current trend is to use a mixed-media filter with fine garnet in the bottom layer, silica sand in the middle layer, and coarse coal in the top layer to reduce clogging.
Best manufacturers of advanced wastewater treatment plants
Netsol Water has assisted in the resolution of hundreds of water and wastewater-related problems, in residential, commercial and industrial sectors by deploying a wide range of specialized, water treatment and wastewater treatment technologies.