polymer feed system Articles

  • Optidose polymer

    Maintaining a minimum concentration of an effective dispersant polymer is crucial in an alkaline cooling water treatment program. The problem is knowing exactly how much polymer is available in the cooling water to combat fouling and corrosion of heat transfer equipment. Many years of research and effort have gone into the development of a method for tracing the concentration of polymers. Rohm ...


  • Seven Ways Your Facility Isn’t Meeting Effluent Regulations and How to Solve Them

    Whether you own, operate, or help manage a municipal or industrial facility that deals with wastewater, it’s important to understand how wastewater treatment can play a significant role in the overall health of your business, especially when it comes to meeting effluent regulations. This is an important part of the wastewater treatment process to consider, as ignoring it could earn your ...


    By SAMCO Technologies, Inc.

  • Hydro Polymers: Searching for a More Sustainable PVC

    Over the last five years, the European PVC industry has been forced to reassess the environmental impact of its products in the face of continuing pressure from environmental groups, governments and end users. Hydro Polymers, one of two PVC manufacturers in the UK, is forging ahead of its competitors through a partnership with sustainability consultancy The Natural Step. The company is launching ...

  • Analog and Digital Drives for Chemical Feed Pumps

    Dart Controls offers DC drives with the essential features required for water/wastewater and chemical feed applications. These drives integrate easily with PLC / SCADA systems providing 4-20mA signals for pump set speed.  Advanced Digital DC drives offer verified actual speed feedback, diagnostic and process alarms and much more…. The 253G-200E-7 is our most popular DC drive. This ...


    By Dart Controls, Inc.

  • The design of static mixer heat transfer equipment for adhesives, sealants, resins and polymers.

    The fluids handled within the adhesives and sealant industries are amongst the most difficult to handle of any in the main process industries globally. The characteristics which make them particularly difficult to handle include: High viscosities (typically 1-2000 Pa.s, or 1000 to 2 million cP). Often non-Newtonian (viscosity is not constant and varies with shear rate). Some ...


    By National Oilwell Varco

  • Common Boiler Feed Water Treatment Issues and How to Avoid Them

    When treating boiler feed water (the combination of boiler makeup and condensate return water), several issues can arise that cause boiler scaling, corrosion, fouling, and system failure. Below, we break down the most common boiler feed water issues and how to avoid them to help ensure system efficiency and operational safety. While treating boiler feed water is extremely ...


    By SAMCO Technologies, Inc.

  • One of the largest ipp power plants in the middle east uses membrane desalination for boiler feed water

    The Facility Sidi Krir Unit 3 & 4 Power Plant, developed by InterGen and Edison SpA, is located about 30 kilometers west of Alexandria, Egypt. It is a natural gas fired power plant and at 685 MW generating capacity, is the largest IPP thermal power plant in the Middle East. The plant consists of two power blocks, which share a common membrane based Seawater Desalination system ...

  • Screening of fruits, vegetables, and feeds for carbamates - strategic diagnostics inc.’s, inquest op/carbamate screen

    I. PURPOSE - The purpose of this document is to detail the standard operating procedure for the screening of cholinesterase inhibiting carbamate insecticides in fruits, vegetables, and feeds using the SDI Food Prep Kit and InQuest OP/Carbamate Screening Kit. NB - This is a screening technique designed to determine presence or absence of cholinesterase inhibiting ...


  • Drilling Mud Circulation System

    As more utility contractors are moving up to larger rigs, they are also moving toward the use of solids removal ( solids control ) systems. These solids control systems are not stand-alone units. They are part of the drilling mud system along with the ...


  • Drilling Mud and Mud Circulation System

    As more utility contractors are moving up to larger rigs, they are also moving toward the use of solids removal ( solid control ) systems. These solid control systems are not stand-alone units. They are part of the drilling fluids system along with the drilling fluid and the fluid pump. ...


  • Lessons Learned from Startup of the Largest Tertiary Ballasted Settling System in the U.S.

     ABSTRACT In February 2005, Onondaga County (County) began operating a 492,000 m3/day (130 mgd) peak flow ballasted settling system at the Metropolitan Syracuse Wastewater Treatment Plant (Metro WWTP) for tertiary phosphorus removal. The system was designed to reduce the total phosphorus concentration in the BAF effluent from 0.75 to 0.12 milligrams per liter (mg/L). This ...

  • Crossflow Membrane Filtration High-Purity Water Systems

    INTRODUCTION As the electronics industry continues to provide us with such products as high resolution television, notebook size portable computers and cars with automatic navigation systems, it becomes necessary to produce semiconductors with finer device geometries to allow for efficient placement of more circuits per a given area. This requires increased control of a semiconductor's material ...

  • New developments of vibratory feeders for large bulk material reclaim systems

    Summary The efficient economical storage, movement, control and blending of large tonnages at coal handling installations such as mines, power plants and port facilities require new and improved designs of vibratory equipment. Environmental and investment impact as well as operational advantages must be considered in the development of any new reclaim system. ...


    By General Kinematics

  • Application of a Medium Pressure UV System for the Treatment of N-Nitrosodimethylamine (NDMA)

    N-nitrosodimethylamine (NDMA) was first detected in 1990 as a problem pollutant in drinking water wells at levels as high as 3,000 ppt in Elmira, Ontario, Canada. The waste from a large chemical plant over many years had led to the contamination of the drinking water wells for the community. After extensive evaluation and testing, it was determined that UV photolysis was the most effective ...

  • Cost effective boiler makeup system using membrane desalination for power plant in dominican republic

    The Facility Andres Power Plant, developed by Caribbean Thermal Electric LLC, is located in Boca Chica, near Santo Domingo, Dominican Republic. It is a 300 MW gas fired combined cycle power plant and is one of the largest IPP power plants in the Dominican Republic and will supply electricity to Corporacion Dominicana de Electricidad. The plant consists of two power blocks, which ...

  • Accuracy and Cost Savings from Automatic Optimization of Dewatering

    Improvements in sensor and automation technology in recent years have made it possible to design a system to control the key variable parameters in and around the dewatering process. By continuously analyzing feed conditions and output from the process, an automated optimization system can make necessary proactive adjustments to the internal settings of the dewatering equipment, the polymer ...

  • Integration of MBR and desalting membranes

    This presentation introduces the evaluation of MBR systems the assessment of the impact of adding coagulant and polymer to the MBR feed water on MBR performance the evaluation of MBR performance under extremem operating conditions (i.e. increased flux, low HRT) the evaluation of several different desalting membranes (RO/NF) following pretreatment by MBR the ...


    By Toray Chemical Korea

  • Waste Water Treatment Plant City of Oakley, UT

    The City of Oakley was very happy with their new MBR facility except for the filter bag sludge dewatering system that was very labor intensive and usually didn’t produce an adequately dewatered sludge. Scott Rogers of Aqua Engineering and Bob Johnson, the Operations Mgr., chose to replace the bag system with a 0.9 meter model DDP belt press system from BDP Industries. The DDP belt press ...


    By BDP Industries

  • Municipal WWTP Digester Cleanout - Jekyll Island, Georgia - Case Study

    Coastal Georgia's Jekyll Island Stale Park, a popular vacation destination, is also home to about 750 permanent residents. John Day, Superintendent of the Water and Wastewater plants, operates the Jekyll Island Authority's I MGD wastewater treatment plant. Structural modifications and improvements to the plant's two anaerobic digesters were scheduled for early 2004. The job was publicly bid and ...

  • Hoosac WQD Williamstown, MA

    An aging primary and secondary treatment facility coupled with increased loadings to the co-settling primary clarifier resulted in the need to upgrade the Hoosac WQD. An important component of the upgrade was biosolids handling. Tighe & Bond selected the belt filter press as the bases of design for this 5.37 MGD average daily flow facility. The co-settled primary and secondary sludge is ...


    By BDP Industries

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