wastewater recovery Articles

  • Heat recovery from wastewater

    Heat recovery from gray water is particularly important in water-intensive industries such as pulp and paper plants, dairies and breweries. Rather than flushing used water down the drain, consider whether a heat exchanging system can help you put that energy to work in your process again. Most plant operators arc aware of the need to save money and reduce the environmental impact of their plant ...


    By DDI Heat Exchangers Inc.

  • Cellulose recovery from municipal wastewater

    During Aquatech 2015 the Dutch technology developer Brightwork set in the spotlight the recovery of cellulose from waste water. The project Cellulose Assisted Dewatering of Sludge (CADoS) aims at separating cellulose fibres from toilet paper from waste water using finescreening technology. After separation the fibres serve as a filter aid for effective dewatering of biological sludge. The ...

  • Wastewater Recovery Using Reverse Osmosis

    INTRODUCTION If one were to select a single word describing the most important factor when applying membrane technology to a wastewater application, it would be chemistry. That is not to say that other factors are not important; certainly fluid dynamics and other physical science factors play a major role as well. But it is the chemistry that is so important to success. And it is the ...

  • Recovery of Acrylic Latex from Wastewater: BASF Australia

     BASF Australia is saving $120,000 per year after installing a $40,000 pump that enabled them to recover valuable acrylic latex previously flushed to effluent when equipment was washed. They are also saving on water costs and thinking about cleaner production led the company to improved scheduling which boosted productivity. Background Based in Victoria, BASF Australia ...


  • Oil Recovery

    Industrial Wastewater Treatment Success Stories Oil Water Emulsion Wastewater Treatment Industry Oil Recovery - Improved Efficiencies A refinery was having several upsets in their ...


    By Integrated Engineers Inc.

  • Tuna Processing & Protein Recovery Wastewater Case Study

    99% Reduction in TSS - 91% BOD - 7.5% Protein Recovery The water from a tuna processing facility was treated for solids reduction, BOD reduction and recovery of the protein from the high protein rendering sludge for reuse as animal feed. The protein is very valuable for use in the animal food industry. Currently the facility has no process for recovery of the protein and ...


    By Integrated Engineers Inc.

  • Recovery of Salmonella from Bermudagrass exposed to simulated wastewater

    Most confined swine (Sus scrofa) feeding operations in the southeastern United States hold manure in lagoons and apply effluent on bermudagrass [Cynodon dactylon (L.) Pers.] as fertilizer. Salmonella enterica subsp. enterica (ex Kauffman and Edwards) Le Minor and Popoff, has been reported in Mississippi lagoons, but levels and potential for contamination of bermudagrass were unknown. A laboratory ...

  • Energy Recovery in Urban Wastewater Treatment on Global Scale

    ABSTRACT The lack of proper wastewater treatment results in production of CO2 and CH4 without the opportunity for carbon sequestration and energy recovery, with deleterious effects for global warming. Without extending wastewater treatment to all urban areas worldwide, CO2 and CH4 emissions associated with wastewater discharges could reach the equivalent of 3.13·105 tCO2·d-1 in 2025, with ...

  • Recovery of nitrogen from saponification wastewater by struvite precipitation

    In general, saponification wastewater produced from the separation process of rare-earth elements contains high ammonium concentration. In this study, a series of experiments were conducted to investigate the parameters to enhance the struvite precipitation potential for ammonium removal from the wastewater having an ammonium concentration of 4,100 mg/L. Experimental results showed that ...


    By IWA Publishing

  • Energy recovery from thermal treatment of dewatered sludge in wastewater treatment plants

    Sewage sludge is a by-product generated from municipal wastewater treatment (WWT) processes. This study examines the conversion of sludge via energy recovery from gasification/combustion for thermal treatment of dewatered sludge. The present analysis is based on a chemical equilibrium model of thermal conversion of previously dewatered sludge with moisture content of 60–80%. Prior to ...


    By IWA Publishing

  • The potential for thermal energy recovery from wastewater treatment works in southern England

    This paper asks how much heat could be recovered from wastewater treatment plants under UK climatic conditions, and can this heat be used effectively to reduce their carbon footprint? Four wastewater treatment sites in southern England have been investigated and the available heat quantified. Issues relating to the environmental, economic and practical constraints on how this energy can be ...


    By IWA Publishing

  • Anaerobic co-digestion of surplus yeast and wastewater to increase energy recovery in breweries

    Surplus yeast is a residue produced during brewery process, which presents high contents of organic matter. Biogas production from yeast could significantly contribute to bioenergy production in breweries, via biogas generation. Co-digestion of surplus yeast and brewery wastewater in a single treatment step would simplify the technical and economical requirements for the transformation of both ...


    By IWA Publishing

  • Development of a packed-bed reactor for the recovery of metals from industrial wastewaters

    Affinity separation is becoming well established for the purification and recovery of metals from industrial wastewaters. Although the method has been successfully applied on a bench-scale, there is a need for reaction engineering studies to scale-up the process for use in large-scale wastewater purification and recovery of valuable metals. In this study, a pilot-scale packed-bed reactor has been ...


    By Inderscience Publishers

  • Development of a new wastewater treatment process for resource recovery of carotenoids

    A new wastewater treatment process that involves coagulation, ozonation, and microalgae cultivation has been developed. Here, two challenges are discussed. The first was minimizing phosphorus removal during coagulation in order to maximize algal production. The second was to optimize microalgae cultivation; algal species that grow rapidly and produce valuable products are ideal for selection. ...


    By IWA Publishing

  • Sequential recovery of copper and nickel from wastewater without net energy input

    A novel bioelectrochemical system (BES) was designed to recover copper and nickel from wastewater sequentially. The BES has two chambers separated by a bipolar membrane and two cathodes. Firstly, the copper ions were reduced on a graphite cathode with electricity output, and then with an additional bias-potential applied, the nickel ions were recovered sequentially on a copper sheet with ...


    By IWA Publishing

  • Local-scale recovery of wastewater nitrogen for edible plant growth

    An anaerobic/ion exchange (AN-IX) system was developed for recovery and reuse of wastewater nitrogen at point-of-origin. AN-IX combines upflow solids blanket anaerobic treatment with ammonium ion adsorption onto granular natural zeolite. AN-IX operates passively and without energy input. A 57 L empty-bed prototype was operated for 355 days on wastewater primary effluent. Total nitrogen removal ...


    By IWA Publishing

  • Development of a new wastewater treatment process for resource recovery of carotenoids

    A new wastewater treatment process that involves coagulation, ozonation, and microalgae cultivation has been developed. Here, two challenges are discussed. The first was minimizing phosphorus removal during coagulation in order to maximize algal production. The second was to optimize microalgae cultivation; algal species that grow rapidly and produce valuable products are ideal for selection. ...


    By IWA Publishing

  • Waste water recovery

    Wastewater Treatment Recovery and Recycling Supports the Environment. Industrial Waste Water Treatment has encompassed industrial waste water recovery and recycling for a long time now, and it's getting better and better.No longer do wastewater producing industries nonchalantly discharge wastewater into runoff systems that eventually merge with the water cycle whether in lakes, streams or in the ...


    By Integrated Engineers Inc.

  • Gold Recovery-1

    The manufacturing of jewelry is comprised of molding to form the jewelry followed by a polishing step, then deburring or ultrasonic cleaning. These steps leave residual gold in the rinsing and ultrasonic cleaning waters. To recover the gold, industries use the FloccinAgentstm for a one step liquid/solid separation process. The process is to collect all of the wastewater into a mixing container. ...


    By Integrated Engineers Inc.

  • Restaurant Grease Protein Recovery

    Food Processing Wastewater Treatment Case Studies Animal & Restaurant Grease Protein Recovery The facility renders animals and restaurant grease as a means to recover protein.  The facility generates wastewater ...


    By Integrated Engineers Inc.

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