Most activated sludge systems have two things in common... Insufficient mixing which leads to poor solids suspension, poor processing, and potential violations and Excessive energy use & cost trying to accomplish item #1. There are other challenges too of course. Odors need to be kept below the "neighbor noticing" threshold. Issues with nitrification / denitrification can easily become large permitting problems. And let`s throw in chlorination / dechlorination and THM removal in there for good measure.
Thickeners improve the operation of your digestion process. WesTech’s gravity thickeners and rotary drum thickeners have a proven history. For biological nutrient removal applications or sites with limited area, dissolved air flotation thickeners offer many advantages.
Town development provokes an increase in the number of used-water treatment sites. In turn, these factories generate silt which must be treated. Therefore, MENART develops and equips silt treatment purification stations with: Corridor turners for silt drying. Sludges mixers with green waste coupled to a sieve. Green waste shredders. Jigger-mixers. Once treated, these sludges can be spread to enhance farming.
In the treatment of sanitary sewage, bio-solids are separated from the liquid. These bio-solids are concentrated and dewatered using filter presses, centrifuges, or other devices. Hydrogen sulfide and mercaptans are released during the dewatering operation. Carus permanganates react quickly and produce immediate results for hydrogen sulfide removal in order to provide a safe, odor free environment and minimize corrosion due to sulfides.
Dewatering and Thickening of Municipal Sewage Sludge using the Decanter. Flottweg has more than 50 years of experience in dewatering and thickening sewage slurry. We know the special requirements of sewage treatment plants and the water industry. As a result, we have developed a special decanter series especially for sewage treatment plants: the Flottweg C series.
The waste-sludge generated by primary and secondary (biological) treatment of municipal & industrial wastewater needs to be managed at every plant big or small. In the larger sewage treatment facilities waste sludge thickening and dewatering has always been assumed a necessity without the planners and designers thinking twice about the cost requirements. In the smaller and decentralized STP’s where available investment is always lower, the on-site waste-sludge management (thickening & dewatering)...
Bredel hose pumps reduce overall operating costs from reduced downtime and the elimination of ancillary costs when feeding primary or thickened sludge to digesters or dewatering devices like centrifuges & filter presses.
Diverse industrial applications for liquid/solid separation and sludge dewatering demand efficient and cost-effective solutions. Since its invention over 100 years ago the solid bowl centrifuge, also called a decanter, has established itself as conventional solution for this task across many sectors. The majority of these applications target the separation from the liquid and solid phase whereby, generally, the least possible residual moisture is required in the solid phase and the lowest possible solid particle...
Improved monitoring and automation can deliver more efficient waste treatment and reduced energy consumption and improved effluent quality. The cost of treatment and the quality of effluent discharge can thus be significantly reduced.