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sewer level Applications

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    Wastewater solutions for municipal sewer control

    Problem: A significant portion of the operational costs of a conventional municipal wastewater treatment plant employing an aerobic biological treatment unit comes from electricity costs associated with aeration. In many cases, the aeration rates are kept at the maximum level to ensure that the plant’s effluent is in compliance with the regulations. The critical parameter for regulatory purposes and treatment efficiency, BOD, takes 5 days to measure through standard methods providing almost no value to the plant operators in terms of adjusting aeration rates and chemical dosing.

    By Real Tech Inc. based in Whitby, ONTARIO (CANADA).

  • Sewer Meter -

    Sewer Meters monitor sewage level and flow within the sewers. Benefits gained by sewer monitoring include: (1) Detection of overflow conditions before overflow occurs thereby preventing hazardous environmental events. (2) Detection of blocked sewer pipes, allowing quick and focused maintenance thereby reducing maintenance costs. (3)Detection of over-used and under-used pipes for long term municipal planning. (4) Monitoring of sewage flow in sensitive sites such as flow to the river or sea. (5) Estimation of sewage flow for costing purposes and especially for pricing the use of public infrastructure by industrial plants. The sewer meter solution consists of two main components: (1) The fielded component includes GaugerGSM, an ultrasonic non-contact level sensor integrated with GSM cellular transmitter. The fielded component also includes accessories such as external battery pack. (2) A web-based monitoring application for presenting data from all sewer sites.

    By Solid Applied Technologies Ltd. (SolidAT) based in Ashkelon, ISRAEL.

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    Measuring Fats, Oil and Grease (FOG) in Wastewater

    It is estimated that 23-28% of Sanitary Sewer Overflows (SSOs) are due to Fats, Oil and Grease (FOG). With significant growth in the commercial food sector on top of other high FOG producing industries such as metal processors, meat packers, cosmetic manufacturers and industrial laundry establishments, the need for publicly owned treatment plants (POTWs) and industries to regulate and monitor FOG is crucial to public health. Besides clogged sewer lines, high FOG levels also disrupt the effective operation of a wastewater treatment plant. An important feature of any FOG program is locating and monitoring high oil and grease producing industries and food service establishments. InfraCal TOG/TPH Analyzers provide a simplified procedure for FOG analysis based on solvent extraction and infrared absorption which can give the regulator or operator an on-site result in less than 10 minutes.

    By Spectro Scientific based in Chelmsford, MASSACHUSETTS (USA).

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