wastewater phosphate Articles

  • Low cost processes for the removal of phosphates in water and wastewater

    This paper presents a synopsis of various low-cost techniques employed for the removal of phosphates from water and treated wastewater. Techniques employed include seawater flocculation and coagulation/flocculation using bittern, adsorption on fluidised raw dolomite bed, and filtration through iron and aluminium coated filter media. Seawater flocculation at a seawater concentration of 10% ...


    By Inderscience Publishers

  • Removal of phosphate and fluoride from optoelectronic wastewater by calcite

    The objective of this study is to study the removal of phosphate (PO43− ) and fluoride (F−) by using calcite from the thin-film transistor liquid crystal display (TFT-LCD) manufacturing wastewater. The highest phosphate adsorption capacity of 40.65 mg/g calcite was found at pH 6.5. It is proposed that both adsorption and precipitation were involved in the removal of phosphate and fluoride. Solid ...


    By Inderscience Publishers

  • Phosphate removal from wastewater using aluminium oxide as adsorbent

    The development and manufacture of an adsorbent to remove phosphate for the prevention of eutrophication in lakes is very important. The use of aluminium oxide (alumina) as an organic adsorbent to remove phosphate from wastewater has been investigated. The characteristics of this absorption process were investigated to determine the important parameters, such as the pH and the aluminium ion ...


    By Inderscience Publishers

  • Phosphate recovery at Schiphol - Case Study

    Sustainable Airport Cities Schiphol's water cycle is comparable to that of a small city. The location therefore provides a good context for a pilot project with the sustainable recovery and reuse of phosphate. Removal of phosphate from wastewater from the airport and the aircraft will ...


    By Nutrient Platform

  • How to use Electrocoagulation for Effective removal of Phosphorus in Wastewater

    In this article, we will be discussing phosphorus, the effects of elevated phosphorus levels on an ecosystem, and how innovative electrocoagulation technology can be sustainably used for effective removal of phosphorus in wastewater & water sources. What is Phosphorus? Phosphorus is one of the most common nutrients on the planet. It is formed naturally in nature, and ...

  • Prediction of adsorption rate of phosphate removal from wastewater with gas concrete

    Gas concrete, a conventional structural material, is used to remove phosphate from wastewater. A batch study of phosphate removal from wastewater with waste particles of gas concrete has been performed. The concentration-time graphs were plotted against pH, temperature, and agitation speed, and the reaction rate equation was adapted to adsorption. The differential method was used to define ...


    By Inderscience Publishers

  • A molecular imprinted polymer based sensor for measuring phosphate in wastewater samples

    Phosphate detection in water samples is still completed using colorimetric standard methods, which have a number of disadvantages, to such as being time consuming, requiring filtration, a number of different reagents, frequent calibration and proper disposal of waste chemicals generated. Hence, a simple cost effective analytical method and instrumentation is highly desirable to aid the ...


    By IWA Publishing

  • Flotation separation of strontium via phosphate precipitation

    Flotation separation of strontium (Sr) from wastewater via phosphate precipitation was investigated. While 37.33% of Sr precipitated at highly alkaline pH in the absence of PO43−, it completely precipitated as Sr3(PO4)2 at a molar ratio ([PO43−]:[Sr2+]) of 0.62 at a lower pH value. The presence of Ca2+ hindered ...


    By IWA Publishing

  • Phosphate removal without chemical dosing from Virotec

    In this article Simon Tillotson, General Manager at Virotec Europe Limited, explains how the Company’s new innovative Bauxsol™ technology is produced, the nature, characteristics and formulation of the product range and how the product works. He outlines applications for Bauxsol™ technology in the water and environmental sector. Simon concentrates specifically on using Bauxsol™ for phosphate ...


    By Clarity Authoring

  • Wastewater dephosphorization using crude clays

    The present work aims to establish the possibility of using local clays to treat wastewater. Thus, three clay samples extracted from two localities in the south of Côte d’Ivoire have been studied in their crude state. The qualitative physicochemical study that consisted in measurement of pH variation and argillaceous particles zeta potential showed that the Nieki-Agneby clay and the Beige Anyama ...

  • Phosphate treatment by onsite wastewater systems in nutrient-sensitive watersheds of North Carolina's Piedmont

    The goal of this study was to gain a better understanding of the PO4-P treatment efficiency of onsite wastewater systems (OWS) installed in nutrient-sensitive watersheds of the North Carolina Piedmont. Four OWS including two conventional and two single-pass sand filter (SF) systems were evaluated at sites with clay-rich soils. Piezometers were installed near all of the OWS, and down-gradient ...


    By IWA Publishing

  • Development of exobiopolymer-based biosensor for detection of phosphate in water

    The present study was conducted to develop a biosensor by exploiting phosphate-binding capacity of exobiopolymer (EBP) produced by Acinetobacter sp. An environmental isolate of EBP-producing Acinetobacter sp. was subjected to transposon (Tn5) mutagenesis to overproduce EBP and afford improved phosphate selectivity. A mutant producing the highest amount of EBP with high ...


    By IWA Publishing

  • Removal of phosphorus from wastewaters by biomass ashes

    Removal batch assays of phosphates from a synthetic wastewater (SWW) and a pulp and paper mill wastewater (PPWW) with two forestry biomass ashes were performed. The supernatants were not only chemically characterized but also the ecotoxicity was determined using two organisms: Vibrio fischeri and Artemia franciscana. The addition of fly ash and bottom ash to the SWW in ...


    By IWA Publishing

  • Oily Wastewater

    In the production process of rolling, galvanizing, spraying, metal cutting, oil and alkali refining, a large amount of oily wastewater is produced. JIUWU company has been successfully applied to the treatment of oily wastewater with ceramic membrane technology, and there are many typical cases. JIUWU company can provide the overall process package of emulsified oil wastewater treatment.  The ...


    By Jiangsu Jiuwu Hi-tech Co

  • Oily Wastewater

    In the production process of rolling, galvanizing, spraying, metal cutting, oil and alkali refining, a large amount of oily wastewater is produced. JIUWU company has been successfully applied to the treatment of oily wastewater with ceramic membrane technology, and there are many typical cases. JIUWU company can provide the overall process package of emulsified ...


    By Jiangsu Jiuwu Hi-tech Co

  • Pesticide removal from wastewater

    In this study, the removal of 2,2 ? dichlorovinyl ? o,o ? dimethyl phosphate (DDVP) from wastewater by adsorption was carried out. DDVP is an organophosphorus insecticide widely used in agriculture in Turkey. Adsorbents used in the study were agricultural waste straw, wood chips and ground corncobs. Adsorption of DDVP onto these materials from wastewater was evaluated by using a batch system. ...


    By Inderscience Publishers

  • Comparison of wastewater treatment processes on the removal efficiency of organophosphate esters

    Organophosphate esters (OPs), widely used as flame retardants and plasticizers, are regarded as a class of emerging pollutants. The effluent of municipal wastewater treatment plants is generally considered to be the main contributor of OP pollution to the surface water. In this study, anoxic–oxic (AO) and University of Capetown (UCT) processes were selected to investigate the removal ...


    By IWA Publishing

  • Immobilization of magnesium ammonium phosphate crystals within microchannels for efficient ammonia removal

    Magnesium ammonium phosphate was formed in flow-through microchannels of silica monoliths using two different methods to fabricate materials that show efficient ammonia adsorption performance from wastewater with low hydraulic resistance. Magnesium ammonium phosphate crystals in these materials release ammonia when heated at 378 K, yielding primarily magnesium hydrogen phosphate. When this ...


    By IWA Publishing

  • Application of nanofiltration for reuse of wastewater

    The present research is a part of efforts to reuse wastewater by applying nanofiltration (NF) method for the secondary treatment of bio–treated wastewater and to check the quality of product water as irrigation water by using various analytical methods. For this, the performances of three different NF membranes (CK, GE–Osmonics; NF–270 and NF–90, Dow–FilmTech) were investigated using a cross–flow ...


    By Inderscience Publishers

  • Struvite crystallization versus amorphous magnesium and calcium phosphate precipitation during the treatment of a saline industrial wastewater

    Struvite crystallization (MgNH4PO4·6H2O, MAP) could be an alternative for the sustainable and economical recovery of phosphorus from concentrated wastewater streams. Struvite precipitation is recommended for those wastewaters which have high orthophosphate concentration. However the presence of a cheap magnesium source is required in order to make the process feasible. For those wastewater ...


    By IWA Publishing

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