ANOX - BDR & MBDR Brochure (PDF 366 KB)

Aquapoint Inc.? 259A Samuel Barnet Blvd. ? New Bedford, MA 02745 Tel: 508-998-7577 ? Fax: 508-998-7177 ? Sales ext 3 ? sales@aquapoint.com ? www.aquapoint.comAQUAPOINT ANOX-MBDRMoving Bed Denitrification ReactorFEATURES AND BENEFITS¾ Will achieve <5 mg/l total nitrogen (TN)¾ Will achieve <1 mg/l nitrate-N (NO3)¾ Designed for denitrification using influentorganic carbon or an external carbon source ¾ Energy efficient process¾ Minimal O&M requirements¾ Modular units for varying hydraulic capacity¾ Odor free, quiet processing¾ Above ground or in ground installations¾ Stainless steel or concrete vesselsThe Aquapoint ANOX-MBDR provides a suitable environment to initiate and complete biological denitrification. Biological denitrification is the reduction of nitrate to nitrogen gas by facultative heterotrophic bacteria in the presence of a soluble carbon source. The ANOX-MBDR can be designed to precede or follow secondary treatment where ammonia is converted to nitrate. Pre-ANOX Reactors use nitrified water re-circulated from secondary treatment and organic carbon present in the influent waste stream to achieve denitrification. Post-ANOX Reactors also use nitrified water from secondary treatment but incorporate a chemical feed system to dose external carbon to the reactor. The placement of the ANOX-MBDR is dictated by the level of denitrification that must be accomplished and the availability of organic carbon in the influent waste stream.Submerged in the ANOX-MBDR is neutrally buoyant, free moving media on which the bacteria adhere and reduce the nitrate in the waste stream. A mechanical mixer completely mixes the water and media ensuring contact of the carbon source, nitrate and bacteria. Biomass that sloughs from the media is settled in a final settling tank or clarifier and re-circulated to the primary tank or sludge holding tank via a sludge return pump. Operation of the mechanical mixer, the sludge return pump and the chemical feed pump is automatic and fully adjustable. Audio and visual alarms are installed to detect pump and motor failure.Bioclere w/ Tertiary ANOX-MBDRwww.aquapoint.comAquapoint Inc.? 259A Samuel Barnet Blvd. ? New Bedford, MA 02745 Tel: 508-998-7577 ? Fax: 508-998-7177 ? Sales ext 3 ? sales@aquapoint.com ? www.aquapoint.comFEATURES AND BENEFITS¾ Will achieve <5 mg/l total nitrogen (TN)¾ Will achieve <1 mg/l nitrate-N (NO3)¾ Designed to achieve tertiary denitrification using an external carbon source¾ Energy efficient process¾ Minimal O&M requirements¾ Modular units for varying hydraulic capacity¾ Sealed for odor free, quiet processing¾ Top of tanks set at grade¾ Stainless steel or concrete vesselsThe Aquapoint ANOX-BDR provides a suitable environment to initiate and complete tertiary biological denitrification. Biological denitrification is the reduction of nitrate to nitrogen gas by facultative heterotrophic bacteria in the presence of a soluble carbon source. Nitrified effluent is pumped or flows by gravity to the ANOX-BDR. An electrical signal from the pump or flow meter will energize a chemical feed pump that transfers organic carbon to the inlet of the chamber. Submerged in the ANOX-BDR are PVC media blocks on which the bacteria adhere and reduce the nitrate in the waste stream. Submersible pumps operating on a duty cycle of approximately 50% will circulate water through the media blocks, ensuring contact of the carbon source, nitrate and bacteria. Sloughing from the media blocks is re-circulated to the primary tank via a sludge return pump. Operation of the two circulation pumps, the sludge return pump and the chemical feed pump is automatic and fully adjustable by the system operator. Audio visual alarms are installed to detect pump failure.AQUAPOINT ANOX-BDRBiological Denitrification ReactorBioclere w/ Tertiary ANOX-BDRwww.aquapoint.com