polymer blending system Articles

  • Plastics pellet manufacturer eliminates blend problems with uniquely designed rotary blender

    Having no internal moving elements, blender achieves 100% discharge eliminating process problems. To remain competitive in a widening world economy, manufacturers have to provide quality products at world market competitive prices. This has forced American manufacturers to rethink their approach to manufacturing. Particularly, rethink the cost effectiveness of their ...

  • Exterior coatings producer blends abrasives with no shaft seal wear

    Since its founding in 1987, contractors have applied over 100 million square feet of Master Wall Inc. products — stucco, coatings, and exterior insulation and finish systems (EIFS) — on residential, commercial and industrial buildings. Master Wall founder and president Steve Smithwick says the company's Aggre-flex EIFS system is "one of the most common commercial cladding in the ...

  • Combination of bespoke and standard ACO surface water drainage systems

    A series of unique, high performance channel drainage systems designed and manufactured by ACO Technic, the bespoke product development division of water management specialist ACO Technologies, has been installed across Heathrow's award winning Terminal Five. As well as helping to overcome some significant challenges posed by the site's design, the systems have played a key role in creating some ...


    By ACO Group

  • 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

  • Environmentally Degradable Polymeric Composite Materials

    Abstract The present study was focused on improvement of the competitiveness of Azotobacter chroococcum 23 produced PHB in two directions: 1) seeking for convenient raw materials for PHB biosynthesis; 2) PHB blending with plasticizers in order to obtain PHB composite materials with controllable physical, thermal properties and biodegradability. Corn starch syrup (PHB content 10,2g/l and 9,8g/l, ...


  • 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

  • University of Washington portal

    Active Treatment and Wheel Wash Water Treatment In late 2008 construction began on the 3-year Seattle Light Rail University of Washington link connecting the university with downtown Seattle. Because this site drains to Lake Washington and the Montlake Cut the City of Seattle has put extra emphasis on protecting surface water from contaminated stormwater runoff. In fact, the city routinely ...


    By Dungeness Environmental

  • Geotube Dewatering Technology For Lagoon Cleanout At Poultry Processing Plant - Case Study

    THE CHALLENGE: In 2006, one of Mexico's largest poultry processing plants was experiencing high levels of BOD discharge into the local river because their two sludge lagoons were full sludge with a high percentage of solids. The plant was expanding operations and had no place to store the additional sludge that would be generated or any onsite means of removal and dewatering. The problem ...

  • CH#830 - Bioaugmentation Improves Performance of Brewery Waste Treatment Plant

    Introduction This packaging plant finishes 'heavy' beer, a liquid concentrate, into the well-known canned and bottled products. The plant handles 50,000 barrels per week and generates over 350,000 gallons of wastewater per day. Wastes are treated at the plant's 0.5 MGD waste treatment facility which operates under a standard discharge NPDES permit. Waste beer is the main constituent of ...


    By BIO-SYSTEMS International

  • Calcium Sulfate Scale Control with ML2580

    Background Mining company operates an ore roasting operation for gold recovery in the western US. SO2 is generated in the process and quenched with water creating a super saturated stream of SO4 . Calcium sulfate (gypsum) scale forms in the process plumbing and reduces critical flow rates. After months of reduced production, the decision was made to shut down and hydro-blast the system. The ...


    By ChemTreat, Inc.

  • Novel application of bamboo-based fibers in a biological contact oxidation process

    Generally, biofilm-supporting carriers in biological contact oxidation processes are made from thermoplastic polymers, which cause potential ecological damage because of the low biodegradation and high accumulation in organisms. Thus, four bamboo-based fibers, bamboo primitive fiber, bamboo fiber, bamboo charcoal fiber (BBF) and bamboo charcoal–cotton blending fiber (BCBF), were used as ...


    By IWA Publishing

  • Corrugating Facility Redesign Wastewater Optimization Case Study

    Paper & Pulp Industry Case Studies Corrugating Facility Wastewater Optimization Integrated Engineers, Inc. modified a corrugating facility in Southern California that required a design build ...


    By Integrated Engineers Inc.

  • Geotube Dewatering Technology Solves Lagoon Cleanout for Mexico’s Largest Chicken Processing Plant - Case Study

    Mexico's largest chicken processing plant was experiencing high levels of BOD discharge into the local river because their two sludge lagoons were full of high percentage solids sludge. The plant was expanding operations and had no place to store the additional sludge that would be generated, nor did it have any onsite means of removal and dewatering. The problem was compounded because the excess ...

  • Bio-Solids Process Enhancements Resulting From the Use of Hydrogen Peroxide for Hydrogen Sulfide Odor Control - The San Antonio Experience

    ABSTRACTThe paper will present results of a trial initiated in February 2004 by the San Antonio Water System (SAWS) to quantify the impacts of hydrogen peroxide injection prior to dissolved air flotation thickening of wastewater sludges. Since February 2000, the San Antonio Water System has successfully used iron salts (FeSO4) for odor and ...

  • Membrane Selection and Optimal Ammonium Nitrate Chemistry for Reverse Osmosis Treatment of Explosive Wastewater

    A process for manufacturing explosives produces an ammonium nitrate-laden wastewater, which can be successfully treated with reverse osmosis (RD). Key to RD use is balancing the competing waste solution chemistry requirements of the two target solutes, to enhance the performance of the particular RD membrane chosen. While the EPA requires only the reduction of the N03 and NH4+ discharge levels ...


  • Well oiled machines

    On November 1, 2004, Bridgewater's first oil skimmer began removing oil from its mill drains. At a cost of $6,500, the skimmer, supplied by Abanaki UK Ltd, represents a significant investment and underlies Bridgewater's commitment to enhancing the operation of its Effluent Treatment Plant. The acquisition of an oil skimmer materialized following lengthy periods of under performance from a ...


    By Abanaki Corporation

  • Moving difficult-to-handle bulk materials with flexible screw conveyors

    Flexible screw conveyor systems can be engineered to transport bulk materials that tend to pack, cake, smear, break apart or fluidize, and can prevent the separation of blended products. Flexible screw conveyors (Fig. 1) are suitable for most bulk materials, from sub-micron powders to large pellets, both free-flowing and non-free flowing. They are capable of conveying bulk materials at any angle ...


    By Flexicon Corporation

  • Energy Savings on Process Heating Units Case History

    The Customer This specialty chemical company is a leading supplier of performance polymers. Their products are used in a wide range of applications including adhesives, coatings, consumer and personal care products, sealants, lubricants, medical, packaging, automotive, paving, roofing and footwear products. The Project The company was increasing the ...

  • Application of Membrane Technology for the Recovery and Reuse of Water

    Abstract As water and sewer costs are expected to increase over the next decade, membrane technology will continue to be a viable and economical option in the recovery and reuse of water. This paper describes the mechanism of membrane effected separation (specifically reverse osmosis, ultrafiltration and microfiltration), membranes commercially available, membrane element configurations, and how ...


  • Case study - Pemaco superfund site remediation

    OVERVIEW Pemaco was formerly a chemical facility located in a light industrial and residential area of Maywood, CA, adjacent to the Los Angeles River. No one knows how long hazardous substances had been leaking into the ground but the operations date back to the 1940's.  Up until closure of the facility in 1991, chlorinated solvents, aromatic solvents, and flammable liquids had ...

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