A wastewater treatment system is a collection of individual technologies, which address your specific wastewater treatment requirements. AWTP that is designed to accommodate fluctuations in treatment, needs help to avoid costly replacements/upgrades in the future.
A well-designed and efficient wastewater treatment system should be capable of handling:
• contamination and flow variations in the process
• changes in water chemistry requirements and required chemical volume adjustments
• potential changes in water effluent regulations
Wastewater treatment plant operation automatic or manual
1. To begin, wastewater is gravity-drained to the WWTP via a car-sized main sewer system. Objects of unimaginable size reach the WWTPs.
2. The first mechanical stage is referred to as preliminary treatment or pre-treatment. Water flows through a gravel chamber to remove grit from the water. The gravel is then disposed of at the dump.
Water reaches the bar screens, which are used to remove large objects from the wastewater. The coarse screens are first, followed by the fine screens, which remove smaller objects such as matches, cigarette butts, or undigested foods.
3. Grit must be eliminated from the wastewater after large objects have been removed. The grit chamber, like the gravel chamber, allows grit to settle. The grit is then extracted from the tank and dumped. Because of their high contamination, neither gravel nor grit can be reused.
4. The next sedimentation stage is known as primary treatment, and it involves the flow of wastewater to so-called "pre-settling basins" or, in technical terms, primary settling tanks.
Water is pushed towards the hopper at the tank's bottom. The hopper arm moves around the edge of the tank at a speed of 4cm/s. Treated water flows toward the tank's edges, and particulates with a higher sedimentation velocity than the flow velocity, settle to the bottom.
This is the point at which primary pre-treatment is completed and secondary wastewater treatment begins. The level of wastewater pollution is reduced by 60% after primary treatment.
5. The biological stage, also known as secondary treatment, is based on natural processes. WWTPs employ bacteria that consume contaminants such as biodegradable organics, carbon, and phosphorus. Sludge is formed after dead bacteria and organic residues decompose.
6. During the biological stage, excess sludge (i.e. bacteria) is pumped out and moved prior to the settling tanks. The sludge settles here before being transported to digestion tanks for further treatment.
7. Sludge from the settling tanks is heated and mixed in the digestion tanks. Following that, biogas is produced from the sludge during the digestion process, which the WWTPs can reuse, for example, for electrical and thermal energy production.
8. When sludge digestion has reached an optimal level, the second digestion stage occurs in storage tanks. The water is separated from the semi-solid sludge and returned for further treatment, while the residual semi-solid is mechanically dewatered.
9. Sludge is finally disposed of at the dump after it has been digested and dewatered to the best of its ability. Sludge is sufficiently dried and ripe after about a month. It can be reused for fertilizing industrial crops, if it meets agricultural standards.
10. The deep inspection of service water is the final step in wastewater treatment. The goal of this inspection is to assess the level of contamination, and ensure that the treated water meets the highest standards before releasing or reusing it, for domestic or industrial purposes.
Best manufacturers and service providers of wastewater treatment plants in India
Finding the best wastewater treatment plant for your needs can be challenging, but a straightforward answer is provided by Netsol Water. If you have any questions about wastewatertreatment plants, please contact our team right away. Our team is an expert in effluent treatment and can help you tailor a solution to your specific requirements.
Our company offers excellent quality wastewater treatment systems, with manual and automatic operations, manufactured through technically advanced process. These are highly demanded in various industrial sectors.