industrial wastewater sampling Articles
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Modelling Pb(II) adsorption based on synthetic and industrial wastewaters by ostrich bone char using artificial neural network and multivariate non–linear regression
In this study at first, the most suitable networks of ANN and MNLR models were constructed based on experimental datasets from a laboratory batch mode. Five ANN and MNLR models comprising various combinations of operational parameters were developed. The results showed that ANN5 model characterised by Levenberg–Marquardt learning algorithm and tangent activation function, which used all input ...
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Concentrations and fate of sugars, proteins and lipids during domestic and agro-industrial aerobic treatment
This work investigates the composition and the fate of sugars, lipids, proteins, amino acids under aerobic conditions for 13 domestic and 4 agro-industrial wastewaters, sampled before and after treatment. The rates of aerobic degradation were moreover studied with a 21-day continuous aeration batch test. It is shown that the sum of the biochemical forms represented 50 to 85% of the total chemical ...
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Adsorption of heavy metals from aqueous solutions by Mg–Al–Zn mingled oxides adsorbent
In our study, Mg–Al–Zn mingled oxides were prepared by the co-precipitation method. The structure, composition, morphology and thermal stability of the synthesized Mg–Al–Zn mingled oxides were analyzed by powder X-ray diffraction, Fourier transform infrared spectrometry, N2 physisorption, scanning electron microscopy, differential scanning calorimetry and thermogravimetry. Batch experiments ...
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FTIR spectroscopy as a novel approach towards providing effect‐based endpoints in duckweed toxicity testing
Traditional duckweed toxicity tests only measure plant growth inhibition as an endpoint, with limited effects‐based data. This study aimed to investigate whether Fourier‐transform infrared (FTIR) spectroscopy could enhance the duckweed (Lemna minor L.) toxicity test. Four chemicals (Cu, Cd, atrazine, and acetochlor) and four metals‐containing industrial wastewater samples were tested. After ...
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Strengthening the Weakest Link
A leading international wastewater instrumentation manufacturer is now using peristaltic pumps from Verderflex as part of the wastewater sampler systems it manufactures. The pumps provide reliable and accurate performance which helps the Hydrocell sampler systems produced by Halifax-based Smart Storm to measure the volume and toxicity of wastewater effluent. As a leading provider of water and ...
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Ion chromatography as highly suitable method for rapid and accurate determination of antibiotic fosfomycin in pharmaceutical wastewater
A rapid and accurate ion chromatography (IC) method (limit of detection as low as 0.06 mg L−1) for fosfomycin concentration determination in pharmaceutical industrial wastewater was developed. This method was compared with the performance of high performance liquid chromatography determination (with a high detection limit of 96.0 mg L−1) and ultraviolet spectrometry after reacting ...
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Ultrasonic irradiation of activated industrial sludge
Sludge is a by-product of wastewater treatment and contains multitude of pollutants. In the present study, irradiation with ultrasound as treatment technique was carried out to treat complex effluent paper sludge, sugar sludge and sewage sludge samples from different industrial places. Wastewater samples were treated in ultrasonic bath at 25 kHz for different time periods of 5 min, 10 min, 20 min ...
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US EPA Method 625 Semivolatiles by GC-MS on the Supelco SLB™-5ms
Application Report 473: US EPA Method 625 describes the procedure for the analysis of industrial and municipal waste water samples by GC-MS. This analysis illustrates the separation of the single-peak base-neutral and acid compounds listed in the method, along with commonly used surrogates and internal standards. ...
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Hazardous Oily Water Treatment Facility
Wastewater Treatment Success Stories Hazardous Oily Industrial Waste Water Treatment The sample was received was at a pH of 6.8 and did not require any pH adjustment. 100 ml of the sample was tested and dosed with 0.4 grams of Floccin J and provided the results as shown below. The sludge was poured though a filter paper and squeezed simulating a pressing operation. The sludge dewatered well ...
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EPA Compliant Due to Sufficient Solvent Recovery - Case Study
"The Syncore® is a work horse for concentrating our samples." Customer name Tod Kopyscinski Company / Institution Con-Test® Analytical Laboratories, USA Product lines Parallel Evaporation Industries Environmental Customer: Con-Test Analytical Laboratories, USA Con-Test Analytical Laboratory provides environmental and hygiene analytical services with the capability of analyzing ...
By BUCHI
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Removal of hexavalent chromium by chemical modification of 4,4′-((1Z,11Z)-2,5,8,11-tetraazadodeca-1,8-diene-1,11-diyl)diphenol: kinetic and equilibrium modeling
This study aimed to synthesize a new resin through immobilization of the 4,4′-((1Z,11Z)-2,5,8,11-tetraazadodeca-1,8-diene-1,11-diyl)diphenol (TRA) onto silica gel modified (Si-CPTS) with 3-chloropropyltrimethoxy silane (CPTS) and its application for the removal of chromium(VI) ions from aqueous solution as well as from industrial wastewater. The same applications were also made for industrial ...
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Movement of toxic metals from small-scale industrial areas: a case study from Delhi, India
In India, an estimated 70% of the total industrial pollution load is attributed to Small and Medium Enterprises (SMEs). Among SMEs, small-scale industries continue to use obsolete technologies with no stringent rules for pollution control. Consequently, waste generated from them is generally dumped without treatment. These facts are strengthened from the analysis conducted on solid waste and ...
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Bacterial diversity in antibiotic wastewater treatment
The bacterial diversity of an antibiotic industrial wastewater treatment system was analyzed to provide the information required for further optimization of this process and for identification of bacterial strains that perform improved degradation of antibiotic industrial wastewater. The total bacterial DNA of samples collected at three stages (aeration, precipitation, and idle) during the ...
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Decoding Principles of Industrial Wastewater Treatment
Understanding Industrial Wastewater Treatment The world of industrial wastewater is vast and varied, encompassing a broad spectrum of waste liquids. These are typically generated during various industrial treatment processes such as manufacturing or production activities. A key player in this arena is production wastewater, which stems from the use of water in numerous processing operations. ...
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A Major Municipal Laboratory Reduces FOG Measurement Time from 24 Hours to 10 Minutes with Infrared Analysis
A Major Municipal Laboratory's analysts regularly perform Fats, Oil and Grease (FOG) measurements on wastewater samples from various industrial plants and apartment buildings. In the past, these measurements were all performed with Environmental Protection Agency (EPA) Method 1664B, which requires about 20 minutes of handling time per sample and 24 hours total to produce results. “A few ...
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