wastewater treatment plant Articles
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How water scarcity in industry can be prevented?
Growing urbanization and industrialization has resulted in water scarcity across the world! For the growing population and scaling living standard consumption of water is rising up. Rising water scarcity does have a negative impact on the industrial productions. This can develop crisis for the industries and would impact on economical development. Several industries even do have noticeable ...
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Municipal wastewater treatment plants as pathogen removal systems and as a contamination source of noroviruses and
Enterococcus faecalis Municipal wastewater treatment plants play a crucial role in reducing the microbial and pathogen load of human wastes before the end-products are discharged to surface waters (final effluent) or land spread (biosolids). This study investigated the occurrence frequency of noroviruses, Enterococcus faecalis and Enterococcus faecium in influent, final effluent and biosolids from four secondary ...
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Co-digestion of press liquids of source-sorted municipal organic waste in anaerobic sludge treatment of municipal wastewater treatment plants
This paper describes a semi-continuous laboratory-scale investigation of a potential co-substrate for mesophilic anaerobic sludge digestion in a municipal wastewater treatment plant. A feed liquid produced from source-sorted municipal organic waste by pretreatment with a screw press was subjected to the investigation. Quantities produced in press trials as well as the composition of the feed ...
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Molecular characterization of dissolved organic matter in various urban water resources using Orbitrap Fourier transform mass spectrometry
Molecular-level characterization of dissolved organic matter (DOM) in different urban water resources (river water, groundwater, reclaimed water, and rainwater) was performed by Orbitrap Fourier transform mass spectrometry (FT-MS). The mass spectra, which were fingerprints of DOM composition, were clearly different among samples. Based on accurate molecular mass determination, about 300 ...
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Effect of co-managing organic waste using municipal wastewater and solid waste treatment systems in megacities
A model was developed to calculate the mass and heat balances of wastewater and municipal solid waste treatment plants when these plants operate either separately or together with a mutual dependence on mass and energy. Then the energy consumption, life cycle costs (LCCs), greenhouse gas (GHG) emissions and effluent quality were evaluated under various scenarios to identify the most effective ...
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Color removal and disinfection with UV/H2O2 system for wastewater reclamation and reuse
ABSTRACTReuse of wastewater effluents from secondary treatment processes in municipal wastewater treatment plants has been issued because of substantial volumes of relatively clean waters. The major components of criteria for wastewater reclamations are color, organic matter, and pathogens. An advanced oxidation process with low-pressure ultraviolet and hydrogen peroxide addition (UV/H2O2 system) ...
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Evaluation of PFCA removal by SAT using a pilot-scale reactor
Wastewater reuse using soil aquifer treatment (SAT) is a rational and realistic solution in countries and regions with limited freshwater resources. The behaviour and removal of perfluoroalkyl carboxylic acids (PFCAs) under long hydraulic retention times (HRTs) in SAT may warrant further investigation. In this study, actual treated effluent from a wastewater treatment plant (WWTP) was ...
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Comparison of metal (Zn and Cu) complexation characteristics of DOM in urban runoff, domestic wastewater and secondary effluent
This study was aimed at comparing the Zn and Cu binding parameters with dissolved organic matter (DOM) in road runoff, wastewater treatment plant (WWTP) effluent and influent. Conditional stability constant (K′) and binding site concentration ([L]) are important to predict free or labile metal concentration and toxicity in the water environment. The values of K′ and [L] of three DOMs were ...
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Experimental power of laboratory-scale results and transferability to full-scale anaerobic digestion
Anaerobic digestion is today internationally acknowledged as an environmentally sound process for energy and nutrient recovery from organic wastes, and it is the dominant sludge treatment technology in most countries’ wastewater treatment plants. Laboratory- or pilot-scale experiments are commonly used as a first step to investigate the potential of new ideas or to confirm research hypothesis ...
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Comparison of metal (Zn and Cu) complexation characteristics of DOM in urban runoff, domestic wastewater and secondary effluent
This study was aimed at comparing the Zn and Cu binding parameters with dissolved organic matter (DOM) in road runoff, wastewater treatment plant (WWTP) effluent and influent. Conditional stability constant (K´) and binding site concentration ([L]) are important to predict free or labile metal concentration and toxicity in the water environment. The values of K´ and [L] of three DOMs ...
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Gulkevichsky Starch Factory – Global Water & Energy partnership to create a blueprint for waste reduction in the starch industry
One of the biggest starch manufacturers in Russia, Gulkevichsky Starch Factory (KZG) doubles its corn processing capabilities and mitigates the environmental impact by installing a new wastewater treatment plant from Global Water & Energy (GWE). KZG increases its production capacity from current 120,000 tons a year and adds new quality products to its portfolio. The new wastewater treatment ...
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Power to the Poo!
Discussing one’s use of the lavatory is usually frowned upon in polite conversation, however that is slowly changing. Experts in various fields of sustainable energy want you to be excited about using the “loo” for both the environment and your pocket book. Currently wastewater treatment plants consume large amounts of energy, between 1% to 3% of global output. Newer plants ...
By Flottweg SE
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Labile, dissolved and particulate PAHs and trace metals in wastewater: passive sampling, occurrence, partitioning in treatment plants
The occurrence and the partitioning of polycyclic aromatic hydrocarbons (PAHs) and seven metals (Al, Cd, Cr, Cu, Ni, Pb and Zn) were investigated in activated sludge wastewater treatment plants by means of passive and active sampling. Concentrations total dissolved and particulate contaminants were determined in wastewater at several points across the treatment system by means of grab sampling. ...
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CCA brewery in Guatemala will reach 97% water quality improvement with GWE’s waste-to-energy technologies
Cervecería Centro Americana (CCA), a brewery located in Guatemala, is enhancing its environmental performance by using Global Water & Energy (GWE) technologies to convert the organic matter of the wastewater into biogas while achieving effluent quality improvements of 97% in organic matter removal. The brewery based in Guatemala City will treat its wastewater with a combination of GWE ...
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Biological nitrate removal using waste-derived extracts as sole carbon source
Waste-derived multicomponent extracts were investigated as carbon source for biological nitrate removal. Aerobic and anaerobic sludge from a municipal wastewater treatment plant and leachate from an anaerobic digester treating food waste were studied. Alkaline-heat treatment was used for sludge solubilisation. More than 90% carbon was recovered at pH 10–11. The extracts contain very high ...
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Comparison of two treatments for the removal of selected organic micropollutants and bulk organic matter: conventional activated sludge followed by ultrafiltration versus membrane bioreactor
The potential of membrane bioreactor (MBR) systems to remove organic micropollutants was investigated at different scales, operational conditions, and locations. The effluent quality of the MBR system was compared with that of a plant combining conventional activated sludge (CAS) followed by ultrafiltration (UF). The MBR and CAS-UF systems were operated and tested in parallel. An MBR pilot plant ...
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The effect of mixing conditions on anaerobic digester performance
The basic principle of aerobic wastewater treatment is the conversion of some parts of organic matters to biomass and this causes production of excessive sludge in aerobic processes. This excessive sludge is withdrawn from time to time to prevent accumulation of biomass in aeration basin. In most cases, this sludge requires the stabilization before the dewatering and disposal. Different processes ...
By ORBIT e.V.
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Why municipal wastewater treatment is important?
Municipal Wastewater Treatment is the process of ejecting the harmful pollutants from wastewater. The main source of pollutants is the domestic use. The pollutants are treated by various methods like Physical, Chemical, and Biological process. The practice of municipal wastewater treatment is best encouraged these days. This treated resource is best for utilizing in raising the crops. ...
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Understanding Screw Press Separator: Applications and Benefits
A screw press separator is a mechanical device used in various industries to separate liquids from solids or to separate different components of a mixture. It operates on the principle of using a rotating screw to exert pressure and force on the material being processed, thereby separating the components based on their physical properties. Here's how a screw press separator typically works: 1. ...
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Janesville Wastewater Project
Location: Janesville Wastewater Plant Janesville, WI Partners: City of Janesville AECOM Unison Solutions BioCNG, LLC – Cornerstone Contact: Daniel Lynch, P.E. Utility Director lynchd@ci.janesville.wi.us Feedstock: Wastewater Biogas Vehicles Fueled: Up to 40 light-duty municipal vehicles Maximum Annual Fuel Production: 3,650 GGE Payback Period: 2-3 ...
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