COD concentration measurement Articles
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Simultaneous decolorization of binary mixture of Reactive Yellow and Acid Violet from wastewaters by electrocoagulation
Dyes are common pollutants in a large variety of industrial wastewaters, and the treatment of these wastes has been extensively studied by coagulation. For the removal of pollutants from the wastewaters, different techniques have been used and electrocougulation is one of the widely used methods. This process is very effective in removing organic pollutants including dyestuff wastewater. The ...
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Effect of agitation on the performance of an anaerobic sequencing batch biofilm reactor in the treatment of dairy effluents
Agitation rate is an important parameter in the operation of Anaerobic Sequencing Biofilm Batch Reactors (ASBBRs), and a proper agitation rate guarantees good mixing, improves mass transfer, and enhances the solubility of the particulate organic matter. Dairy effluents have a high amount of particulate organic matter, and their anaerobic digestion presents inhibitory intermediates (e.g., ...
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Using numerical simulation of a one stage vertical flow wetland to optimize the depth of a zeolite layer
This simulation study investigates the treatment performance of a compact French vertical flow wetland using a zeolite layer in order to increase ammonium nitrogen removal. For the modelling exercise, the biokinetic model CW2D of the HYDRUS Wetland Module is used. The calibrated model is able to predict the effect of different depths of the zeolite layer on ammonium nitrogen removal in order ...
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Water Quality and Toxicity Assessment in Koronia Lake - Greece
Abstract :Lake Koronia, located in Northern Greece, is an environmentally sensitive area protected by Ramsar Convention. However, COD values higher that 900 mg/l and nitrate-nitrogen concentration higher than 10 mg/l were measured in the lake water. Furthermore, toxicity bioassays based onDaphnia magna, resulted in mortality values of test species higher than 40% in the lake water. The poor water ...
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Simulation of water flow and solute transport in intermittent sand filter
Water and solute transport in intermittent sand filtration was simulated with a modified HYDRUS 1D program. Field trials were performed through a 10 × 10 m infiltration basin located at Dissa agriculture area in the north of Gabes city (south-east Tunisia). Performance of the calibrated model has been statistically evaluated for its ability to predict water flow and solute transport. Comparisons ...
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Assessment of the technological reliability of a hybrid constructed wetland for wastewater treatment in a mountain eco-tourist farm in Poland
The aim of the present study was to assess the technological reliability of a domestic hybrid wastewater treatment installation consisting of a classic three-chambered (volume 6 m3) septic tank, a vertical flow trickling bed filled with granules of a calcinated clay material (KERAMZYT), a special wetland bed constructed on a slope, and a permeable pond used as a receiver. The test treatment ...
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Anaerobic Biomass Activity Tests
Anaerobic Biomass Activity Tests The methane production activity of anaerobic sludges is related to the history of the sludge, the biomass yield from the wastewater the sludge has been treating, the fraction of methanogens, and the presence of toxic substances. Best performance can be achieved from an anaerobic treatment plant if the operator measures the Specific Methanogenic Production (SMP) ...
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Automotive Transmission Manufacturing Plant
Dynatec is engaged to provide a complete WWTP on a design build own operate and maintain basis. The Problem The automotive company was building a new plant in Georgia and required treatment for wastewater for the new plant and needed to reduce their capital expenditures for the new facility. The plant produces wastewater containing oil, metals, and high COD. Further, there was interest in ...
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Efficient Waste Water Treatment
Clean drinking water is an essential need of mankind. Often surface water like rivers or lakes is used as drinking water source. To prevent these resources from pollution the effective treatment of waste water is a must. For example in China 75% of discharged waste water is coming from pulp and paper, textile and dyeing industries. To run a waste water treatment plant in the most efficient way ...
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Streamlining Wastewater Treatment in Poultry Processing: Michigan Turkey and Lyco Team Up to Provide a Showpiece for Reducing BOD and TSS Levels
With the steady increase in poultry processing rates there has been a corresponding increase in wastewater pollutant concentrations. Despite mechanical improvements in wastewater treatment, many poultry processors continue to pay unnecessarily high fees for municipal water discharges. $100-million-annual processor, Michigan Turkey Producers, in conjunction with Lyco Manufacturing, has set up a ...
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