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.
Komline-Sanderson`s pumping, thickening, dewatering, and drying technologies are used to help both municipal and industrial wastewater (sewage) treatment plants reduce their sludge and biosolids disposal cost. Thickening greatly reduces the sludge volume for land application or improved digester performance. Belt press dewatering meets landfill disposal requirements for cake solids.
Indirect drying allows for disposal cost reduction and for the beneficial use of biosolids as soil amendments (fertilizers), sludge...
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)...
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.
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.
Continuous measurement of sludge coming from a digestion tower and being pumped through a heat exchanger. Required to detect possible blockage or reduced pump performance and to ensure permanent heat supply for the WWTP social areas.
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.
The wide range of Pieralisi decanters is in fact successfully used by over 15,000 customers around the world for the volume reduction of biological and physical/chemical sludge of both Municipal and Industrial origin.