grit separation Articles

  • The Power to Separate

    Gravity separators are effective and economical tools used to process wastewater and stormwater by removing pollutants such as sediment, hydrocarbons and debris through the process of sedimentation or flotation. Most separators have few or no moving parts, are easy to maintain and have a successful history of use in many different industrial, commercial and residential applications. Specifying ...


    By BaySaver Technologies, Inc.

  • NS80 Class 1 Oil/Water Separator & 8000 litre Washdown Separator – Truck maintenance depot – Northamptonshire

    Site DescriptionTruck maintenance depot - Northamptonshire RequirementsDepot split into two external hard standing areas and internal maintenance bays with integrated floor drainage (totalling an area of 4046 sq metres). Within this site is located a vehicle washdown bay. Installation dateNovember 2005 ProductNS80 ...


    By Kingspan Environmental Ltd

  • Case study - oil removal from oil water separator

    Customer: Food Processor; forming and precooking prepared food items for the fast food industry.  Plant located in Upstate New York. The Problem: Customer operates three shifts of production.  The third shift is responsible for washing and sanitizing all food process equipment and surrounding areas.  Oil and grease from sausage and ...


    By SkimTech Inc.

  • Oil Water Separator CarWash in Finland HD Q-PAC Retrofit Eliminates Maintenance Headache

    Introduction Getting your vehicle washed is always a good idea. But the dirt (leaves, sand and other grit) and especially oils that wash off vehicles need to be collected and removed from the water before the water can be reused or discharged. HD Q-PAC is Installed in Car Truck Wash Oil Water Separator A car wash (average 150 vehicles per day) located near Helsinki, Finland had an oil ...


    By Lantec Products, Inc.

  • Rock Box Protects Headworks at Kansas City, Missouri Blue River Wastewater Treatment Plant

    Kansas City Missouri Water Services Department operates the 105 mgd Big Blue River Wastewater Treatment Plant (WWTP) serving combined and separate sanitary sewers on both sides of the Missouri River in Kansas City. Heavy grit inundation from the Combined Sewer System (CSS) was impacting the screen house and aerated grit/pre-aeration basins at this facility. Alternatives were considered for ...

  • Occurrence and removal efficiency of six polycyclic aromatic hydrocarbons in different wastewater treatment plants

    Occurrence and removal efficiency of six polycyclic aromatic hydrocarbons (PAHs) (fluoranthene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, benzo[ghi]perylene and indeno[1,2,3-cd]pyrene) in wastewater were monitored at different treatment processes in three wastewater treatment plants (WWTPs) by using ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). ...


    By IWA Publishing

  • Sedimentation structures

    Sedimentation structures are measures, which purify the surface runoff with the principle of sedimentation. The separation of solid from rainwater discharge (divided sewer system) can be carried out through: grit chamber rainwater sedimentation tank vortex separator system The dimensioning of plants, that work with sedimentation is done according to the allowed ...


    By IWA Publishing

  • Development of wet pre-treatment and pulper technology

    Since 1984 BTA is involved in activities in the area of waste pre-treatment. This process was first implemented in 1986 in a pilot plant. The patented BTA-Process is consisting of the following main steps: - Wet pre-treatment of waste with separation of the contaminants and production of a pumpable suspension- Sand separation by a hydrodynamic grit removal system- Digestion of the suspension in ...


    By ORBIT e.V.

  • Skyharvester UNUM Insurance case study

    Objective: To reduce municipal water usage at UNUM’s new Corporate Headquarters site in Chattanooga, TN. Site Specifications & Known Requirements: Harvested water usage to be 100% irrigation. Urban location Average gallons of water needed per week: 7,950 Maximum gallons of water needed during peak summer weeks: ...


    By Lindsay Corporation

  • Reduce waste to D-Max - imum

    Specialist waste management contractors, JK Environmental, expect to see a 70% reduction in waste to landfill volumes as a result of an investment in a new DMax waste reduction and recycling unit from County Tyrone company, CDE Ireland. JK Environmental, one of the leading contractors to the industry in the UK and Ireland, operate from four depots in Coventry, Leicester, Cambridge and Ipswich. ...


    By CDEnviro

  • Ovivo Double Entry Drum Screens at Yellow River WRF, Gwinnett County, GA – Customer Testimonial

    “We completed the Yellow River WRF Improvements Project in 2012. This project replaced an aging 14.0 MGD conventional activated sludge facility with an advanced 22.0 MGD MBR facility. The MBR facility includes third party submerged fiber membrane for solids separation. The membrane manufacturer required, at a minimum, 2mm screening to protect the .04 micron membrane. We decided to purchase ...

  • CH#831 - Municipal Wastewater Treatment Plant

    Introduction The Wastewater Treatment Plant is a rotating biological contactor treatment process preceded by bar screening, grit removal and primary settling. Subsequent to the secondary treatment process, the flow stream enters a chlorine contact tank and then goes to the receiving stream. The program study was started on March 4th. The objectives were a recovery from filamentous infestation, ...


    By BIO-SYSTEMS International

  • Case study – oil removal from central collection basin

    Customer Profile: Largest manufacturer of newspaper stock and toilet tissue in Toronto, Canada using recycled paper as the primary ingredient in their production process.  Customer collects paper, newsprint and magazines from “blue boxes” and other sources throughout Ontario Province.  Customer separates the paper collected and makes recycled paper ...


    By SkimTech Inc.

  • Pumps with extended service life for generating biogas from organic waste

    When regular commercial pumps are used to process organic waste, they typically wear out after only a short period of time. Liquids pumped under these conditions attack pumps from two different angles: first with highly abrasive additives and second with liquids that have highly fluctuating pH values and therefore a high level of chemical aggressiveness. These conditions are very tough on seals ...


    By ALLWEILER GmbH

  • Project profile - Westview Elementary and High Schools Topeka, Indiana arsenic treatment systems

    Background In early 2006, AdEdge Technologies Inc. (AdEdge) teamed up with Hawkins Water Tech to design and implement two full-scale arsenic treatment projects for Westview Elementary School and Westview High School located in Topeka, Indiana. Arsenic concentrations in the school wells range between 21 and 23 ppb, which exceeded the new Federal EPA standard of 10 ppb. Design plans were ...

  • A Reinvigorated Approach to Operational Safety in the Design of a New Digestion System for Spokane, Washington

    ABSTRACTThe failure of Digester No. 3 at the Riverside Park Water Reclamation Facility (RPWRF) in Spokane, Washington triggered a host of changes to many aspects of project implementation, as well as daily operation. Planning, design, construction and startup of  improvements now emphasize improved communication and collaboration between the design team and plant staff, as well as a ...

  • Sludge Disposal that’s Sustainable, Safe and Economically Viable

    The Kemwater Recycling Process – KREPRO for treatment of sewage sludge is based on a completely new separation technology, which uses existing knowledge in an innovative way. It reduces both the organic and inorganic content of the sludge. The organic content is re-duced by about 30% and the inorganic about 70% if digested sludge is treated. All metals and salts are dissolved; the remaining ...


  • Wastewater treatment facility uses ‘monsters’ to better manage screening, odor and trash

    As wastewater pours into the Cobourg Water Pollution Control Facility located on the outskirts of this Canadian town, it comes loaded with organics, trash, debris and chemicals. A large perforated plate screen system, called a Monster Separation SystemTM, is the plant’s first line of defense and removes all unwanted solids in order to protect downstream processes.Managers at the facility report ...


    By JWC Environmental

  • New technology for sludge management reduces waste to landfill by 80%

    The first batch of results from a new sludge management and waste reduction system at Severn Trent's Coleshill Sewage Treatment Works in Birmingham, England show a consistent 80% reduction in waste to landfill volumes. The DMax system has specifically been developed by CDE Ireland Ltd to process a variety of wastes as detailed below. This list is not exhaustive and represents the material for ...


    By CDEnviro

  • ORP and pH Based Control of SBR Cycles for Nutrient Removal from Wastewater

    ABSTRACTContinuous monitoring of multiple process functions were conducted involving removals of BOD, TSS and nutrients, in each cycle of the SBR reactor at the wastewater treatment plant of the City of Carrabelle, FL. On line, real time, monitoring of pH, oxidation reduction potential (ORP), dissolved oxygen (DO), ammonia-N, nitrite-N, nitrate-N and orthophosphate-P demonstrated excellent ...

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