organic wastewater Articles
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A study on ruthenium-based catalysts for pharmaceutical wastewater treatment
Ruthenium-based catalysts were prepared by a saturation-dip method. Their catalytic activity was evaluated by a catalytic wet oxidation (CWO) process. The ruthenium-based catalysts were used to purify organic pharmaceutical wastewater with high concentration pyridine and pyridine derivatives that have high chemical oxygen demand (COD). In the CWO process, organic pharmaceutical wastewater was ...
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Effects and mechanistic aspects of absorbing organic compounds by coking coal
Coal is a porous medium and natural absorbent. It can be used for its original purpose after adsorbing organic compounds, its value does not reduce and the pollutants are recycled, and then through systemic circulation of coking wastewater zero emissions can be achieved. Thus, a novel method of industrial organic wastewater treatment using adsorption on coal is introduced. Coking coal was ...
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Combined technology for clomazone herbicide wastewater treatment: three-dimensional packed-bed electrochemical oxidation and biological contact degradation
The clomazone herbicide wastewater was treated using a combined technology composed of electrochemical catalytic oxidation and biological contact degradation. A new type of electrochemical reactor was fabricated and a Ti/SnO2 electrode was chosen as the anode in electrochemical-oxidation reactor and stainless steel as the cathode. Ceramic rings loaded with SnO2 were used as three-dimensional ...
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Performance of horizontal flow roughing filter using limestone media for the removal of turbidity, suspended solids, biochemical oxygen demand and coliform organisms from wastewater
This paper examines and evaluates the removals of turbidity, suspended solids, BOD and coliform organisms from wastewater using different sizes of limestone roughing filter. Results indicated that removal efficiencies depended on the size of the filter medium and applied flow rates. Turbidity, suspended solids, BOD and coliform organisms removals were between 75% and 92%, 79% and 88%, 51% and 67% ...
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Application of nitrifying granules to improvement of nitrification activity in activated sludge process
Nitrifying granules were used to improve nitrification performance of activated sludge process under high organic load. After inoculation of nitrifying granules, nitrification activity immediately increased, and kept for at least 70 days. Fluorescence in situ hybridisation analysis confirmed that nitrifying bacteria were retained in the granules even though nitrifying granules had been served in ...
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Thermophilic digestion revisited
On the 28th of October Colsen presented their practical experience in the field of anaerobic sludge digestion at the Ghent symposium Valorization of organic resources from wastewater. At the symposium various speakers presented its view or experience on the topic of valorization of organic resources from wastewater. Numerous examples are being developed by companies and universities and several ...
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Optimization of atmospheric air plasma for degradation of organic dyes in wastewater
This study optimises the degradation of a cocktail of the dyes methyl orange and bromothymol blue by atmospheric air plasma. Response surface methodology (RSM) was employed to investigate the efficacy of the plasma process parameters on degradation efficiency. A Box–Behnken design (BBD) was employed to optimise the degradation of dyes by air plasma discharge. A second order polynomial ...
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Treatment of Wastewater from Nictric Acid Production (first)
The nictric acid is an organic acid, which is mainly used in food industry, medicine, chemical industry and so on. Generally, starch is the main source of nictric acid. The nictric acid production will produce a large amount of wastewater. This paper mainly introduces two methods to treat citric acid wastewater, which are biological method and photosynthetic bacteria method. Biological method The ...
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Sustainable wastewater treatment chemicals in a chicken processing plant
Atana Ltd was invited to evaluate the potential for introducing an organic, sustainable wastewater treatment regime into a chicken processing plant. The flow was approximately 120m³ (over 18 hours per day). The plant killed around 126000 birds per day and the sludge volume produced from their effluent treatment plant (which encompassed dissolved air flotation) per annum was around 13000 ...
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Anaerobic Biotechnologies
Anaerobic wastewater treatment is the biological treatment of wastewater without the use of air or elemental oxygen. Many applications are directed towards the removal of organic pollution in wastewater, slurries and sludges. The organic pollutants are converted by anaerobic ...
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Removal of organic wastewater contaminants in septic systems using advanced treatment technologies
The detection of pharmaceuticals and other organic wastewater contaminants (OWCs) in ground water and surface-water bodies has raised concerns about the possible ecological impacts of these compounds on nontarget organisms. On-site wastewater treatment systems represent a potentially significant route of entry for organic contaminants to the environment. In this study, effluent samples were ...
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Wastewater as a resource: a unique approach to achieving energy sustainability. Water Science & Technology
Abstract: A wastewater-treatment flowsheet was developed to integrate uniquely designed biological processes with physical-chemical unit processes, allowing conversion of the organic carbon in the wastewater to methane, the removal and recovery of phosphorus and nitrogen from the wastewater, and the production of water suitable for reuse. In the flowsheet, energy is derived from the wastewater by ...
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Different process configurations for biomass-carrier-based treatment of industrial wastewater
KeywordsBiological wastewater treatment, Industrial wastewater, biomass carriers, case study IntroductionBiological treatment is still the most cost effective method to oxidize organic pollutants in wastewater. However, industrial wastewaters from different sources vary widely in composition. In some cases, the wastewater composition might prevent biological treatment by itself to meet effluent ...
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Biomar AWR process graduates with flying colours - Case Study
A pioneering wastewater purification process with biogas production has been in use at Norrmejerier dairies in Sweden for over 15 years. The trailblazing company has been achieving positive results for many years. Goodbye whey - parting is such sweet sorrow (usually). As, whoever produces cheese, also produces whey or whey permeate as a waste product. And waste disposal is an expensive ...
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Optimal design of multi-stage bioreactors performing wastewater treatment using the MATLAB optimisation function ( fmincon )
Optimum design of continuous stirred tank reactors (CSTRs) in series to biodegrade organics in wastewater was carried out. It was assumed that cell growth kinetics follows Contois model with endogenous decay. The optimal design was based on the minimum overall reactors volume required for a certain degree of substrate removal. The effect of operating parameters such as substrate inlet feed ...
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Winery Wastewater Treatment
Atlas Seis is a company with 22 years of experience acting in the fields of Energy and Environment. We have qualified and expert technicians in different fields, equipped with the tools and knowledge necessary to propose the best solutions to our customers. Hereby, we present you the bioaugmentation technology and our biological product biodigestor. The wine industry is a seasonal activity, ...
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Northwest’s Hood River Juice Company Hood River, OR case study
The Problem: Hood River Juice was building a new process facility and needed to construct a wastewater treatment plant to meet their surcharge requirements for BOD and TSS. The goals and objectives were to minimize operator attention and achieve results that were sustainable. The Solution: BioprocessH2O provided a bioFAS Mobilized Treatment Unit (MTU) designed for biological treatment of organic ...
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Performance evaluation of an aerobic biofilter with high organics containing synthetic wastewater
The organics removal performance of a lab-scale aerobic biofilter of volume 0.6 L was studied using synthetic wastewater and waste automobile tyre-tube beads as media. The column study was performed under Chemical Oxygen Demand (COD) in the range of 500-1500 mg/L at an empty bed contact time (EBCT) of 2 h. The treatability constant at 27°C was found to be 41.963. A maximum COD removal efficiency ...
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Treatment of cornstalk fibrous pulp wastewater using Anaerobic Baffled Reactor (ABR): effect of shock loading rates
The treatment of cornstalk fibrous pulp wastewater in Anaerobic Baffled Reactor (ABR) was investigated. The effect of shock loading rates, such as various hydraulic and Organic Loading Rates (OLRs), on the performance of ABR was assessed. When the influent COD concentration was kept 4000 mg/L, the Hydraulic Retention Time (HRT) was decreased from 40 h to 18 h, the removal efficiency of COD was ...
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Activated Sludge Types for Sewage & Water Treatment
Activated Sludge Types for Sewage & Water TreatmentIn the Activated Sludge Process for waste water treatment, microorganisms, including bacteria, fungi, and protozoa, are used to speed up the decomposition of organic matter requiring oxygen for treatment.The Activated Sludge name and meaning originates from the process it involves: the production of an activated mass of microorganisms capable ...
By YASA ET
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