solid residue treatment Articles

  • Influence of water treatment residuals on dewaterability of wastewater biosolids

    Co-dewatering of water treatment residuals (WTR) and wastewater biosolids can potentially benefit municipalities by reducing processing equipment and costs. This study investigated dewaterability (using capillary suction time, CST) of combined alum residuals (Al-WTR) and anaerobically digested biosolids at various blending ratios (BR), defined as the mass ratio of WTR to biosolids on a dry ...


    By IWA Publishing

  • Phosphorus partitioning in co-dewatering biosolids and water treatment residuals

    Stabilization and dewatering methods for wastewater solids determine the concentration and nature of phosphorus (P) in biosolids and in-plant sidestreams recycled to the liquid treatment facility. Because water treatment residuals (WTR) exhibit strong immobilization of soluble P, this study evaluated the impact of co-dewatering WTR and biosolids on the P partitioning during dewatering and the ...


    By IWA Publishing

  • From fermentation residues to nutrient concentrate

    Treatment of fermentation residue substrates from biogas plants by means of ceramic membranes The growing number of biogas plants makes it increasingly difficult to return the fermentation residue substrates to green spaces or arable land. Especially large-scale plants are often unable to find sufficient disposal possibilities in acceptable distances. Therefore it is sensible to treat ...


    By atech innovations gmbh

  • Minimizing Arsenic Leaching from Water Treatment Process Residuals

    Ferric chloride addition was investigated for treatment of As-laden spent regeneration brine from ion exchange processes. Furthermore, varying conditions and calcium addition were investigated for the stabilization of the resulting As-laden solids. Arsenic, sulfate, bicarbonate, and chloride concentrations in the spent brine (300 mg/L, 605 mg/L, 305 mg/L, and 24 g/L, respectively) were orders of ...

  • From fermentation residues to nutrient concentrate

    The growing number of bio-gas plants makes it in-creasingly difficult to return the fermentation residue substrates to green spaces or arable land. Especially large-scale plants are often unable to find sufficient disposal possibilities in acceptable distances. Therefore it is sensible to treat fermentation residue substrates by suitable screening processes in such a way that they can be ...


    By atech innovations gmbh

  • Anaerobic treatment of residual lemon pulp in digesters with semi-continuous feed

    Lemon growing areas in the north of Argentina have industries that produce concentrated juice, peel and essential oil and generate a significant amount of liquid and solid waste as lemon pulp. In Argentina, despite the potential applications that the pulp has as animal feed and human and industrial raw material, only 10% is used for these purposes and the rest is discarded into the ...


    By IWA Publishing

  • Solid-state fermentation of soybean residues for bioflocculant production in a pilot-scale bioreactor system

    An innovative approach using soybean residues for the production of bioflocculants through solid-state fermentation was carried out in 4.5 L near-to-adiabatic bioreactors at pilot-scale level. An added inoculum of the strain Bacillus subtilis UPMB13 was tested in comparison with control reactors without any inoculation after the thermophilic phase of the fermentation. The flocculating ...


    By IWA Publishing

  • Assessing the Impacts of Membrane Residuals on Wastewater Treatment Facilities and Effluent Quality

    ABSTRACTGiven the benefits derived from membrane treatment of water and wastewater, interest in using membranes is growing throughout the world, and at an ever increasing rate. As expected, the focus has been on the benefits of the product water (permeate) side of the system, but the system sidestreams (concentrates) bring their own special set of issues. As with any ...

  • Effect of temperature on composting residual Organic Fraction of Municipal Solid Waste (OFMSW) after anaerobic digestion

    Aerobic composting is generally considered as a necessary post-treatment for residual solids after anaerobic digestion. This study aimed to determine the effects of temperature on biodegradation, microbial population density in composting residual OFMSW after anaerobic digestion. Four composting runs at different set temperatures were conducted. The rate of ...


    By Inderscience Publishers

  • Land application of Water Treatment Residuals: effect on wheat yield and the availability of phosphorus and aluminium

    Water Treatment Residuals (WTR) can be a potential source for available phosphorus (P) and Al, but the influence of WTR rates on the dynamics of available P and Al and plant uptake in alkaline soils are not well documented. Our objective was to evaluate the effects of WTR (Alum-sludge) on the agronomic performance of wheat crop grown in alkaline soils as well as P and Al availability and ...


    By Inderscience Publishers

  • Restaurant Wastewater Treatment

    Restaurant Wastewater Treatment Grease Trap Wastewater Treatment, Fats, Oils & Grease Easily Removed Wastewater Recycled A grease trap waste hauling operation requested assistance on determining ...


    By Integrated Engineers Inc.

  • Life cycle assessment of the mechanical biological pretreatment of residual wastes

    In Germany the handling of wastes is regulated by the 'Kreislaufwirtschaftsgesetz (i.e. Closed Cycle Economy and Waste Act) which gives priority to waste avoidance. Waste that cannot be avoided has to be recycled or reused as long as it is environmentally favourable. The residual wastes have to be pre-treated before landfill to reduce the negative effects of the landfill as production of landfill ...


    By ORBIT e.V.

  • Acid Mine Drain (AMD) treatment to achieve very low residual heavy metal concentrations

    Abstract Mount Emmons mine wastewater treatment plant currently treats on average around 450,000 gallons per day of acid mine drain (AMD) water collected into several collection ponds. The plant uses standard lime hydroxide precipitation process at pH 10.7 to precipitate heavy metals and remove AMD contaminants with the subsequent flocculation - dissolved air flotation (DAF) and sand ...


    By Clean Water Technology, Inc.

  • Microfiltration for treatment of waste filter washwater at water treatment plant

    The North Jersey District Water Supply Commission (Commission) serves about 2 million consumers from its 210 mgd water treatment plant (WTP) in Wanaque, New Jersey, about 25 miles northwest of Manhattan. Raw water is obtained primarily from the adj acent Wanaque Reservoir, and the nearby Pompton and Ramapo Rivers. The Wanaque WTP provides conventional treatment with chiorine as primary ...


    By Pall Corporation

  • Time to address the air pollution control residue problem

    The incineration of municipal solid waste is gaining increasing importance in the UK, especially as the burning of waste can be used to generate energy, providing a more sustainable solution to our waste problem by diverting it from landfill sites. An issue with incineration is that some of our waste contains hazardous chemicals such as chlorine and lead which are volatilised during the process. ...

  • Energy Recovery from Residual Waste by Means of Anaerobic Digestion Technologies

    ABSTRACT Anaerobic digestion (AD) is a natural process, spontaneously taking place in natural surroundings, such as marshes,bogs, paddies, or in cesspits, landfills, and dedicated digesters, used for the conversion of organic waste into a rich gas. Typical AD substrates are: manure, sewage sludge, high BOD wastewater, and – more recently - the organic fraction of Municipal Solid Waste (MSW), ...


    By ORBIT e.V.

  • Municipal Solid Waste – Key to a Low Carbon Economy

    A newly released report has found the waste sector has a key role to play in the development of a low carbon economy and the reduction of greenhouse gases (GHGs). This report comes in advance of the UN Climate Conference in Paris, which will take place in December. The report was ...


    By Zero Waste Europe

  • Retention of pharmaceutical residues and microorganisms at the Altendorf retention soil filter

    A study has been conducted on a retention soil filter (RSF) to test its effectiveness in removing pharmaceutical residues and microorganisms from combined sewer overflows (CSOs). Efficient removal of solids, nutrients and heavy metals has already been proven. The possibility that organic micropollutants and microorganisms are also retained by the use of RSFs has been identified, but data are ...


    By IWA Publishing

  • Defining solid waste

    Simultaneous to the publication of the final National Emission Standards for Hazardous Air Pollutants for Boilers (the Boiler NESHAP) and the Commercial and Industrial Solid Waste Incinerator (CISWI) Rules, EPA issued a new regulation that for the first time defines what materials are a non-hazardous solid waste when combusted. This rule, Solid Wastes Used as Fuels or Ingredients in Combustion ...


    By Trinity Consultants

  • Sludge treatment reed bed facilities – organic load and operation problems

    The dewatering of the sludge with loss on ignition between 50 and 65% will have a maximal drainage on the order of 0.008–0.020 L/s/m2. Dewatering of the sludge with loss of ignition higher than 65% of dry solids will have a maximal drainage on the order of only 0.001–0.004 L/s/m2, approximately five to 10 times lower. It can be seen that there is a tendency for the achievable dewatering result to ...


    By IWA Publishing

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