Showing results for: 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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Spackling Adhesive Manufacturer
Floccin J was used to treat these samples of spackling compound wastewater. The sample was at a neutral pH and required no pH adjustment. The Floccin-J was added at a dosage of 0.12 grams in 100 ml of wastewater. For a 1,000- gallon batch treatment, this would equate to a chemical cost of $15.00 with excellent water clarity that could be reused in the ...
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Circuit Board Manufacturer
A circuit board manufacturer was having difficulty with copper and zinc in their wastewater stream. The metals come from etching and plating processes at the facility. Integrated Engineers treated the water with IE-061 (a metal precipitant), and Floccin-1105. The photo on the left shows untreated and treated water samples. Note the clarity of the water in the treated sample. The photo on the ...
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Latex Manufacturer Wastewater Case Study
Targeting TSS and Achieving Clarity The wastewater sample when received was a pH of 10.3. The request for a wastewater solution was to remove TSS and obtain better water clarity. Various Floccin blends were used until the water clarity was acceptable. Better results were obtained combining the two types of wastewater and performing the jar test. The recommended treatment is to use Floccin ...
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Biodegradation Tests for Wastewater Samples
Biodegradation Tests for Wastewater Samples Biodegradation tests usually involve comparison of the oxygen uptake of a test sample – or gas production for anoxic or anaerobic tests – to that for a readily biodegradable control substrate (usually acetic acid, ethanol, or aniline). While biodegradation characteristics can vary among chemical types and wastewater sources, typical patterns are shown ...
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Treatment of emulsified oils by electrocoagulation: pulsed voltage applications
The effect of pulsed voltage application on energy consumption during electrocoagulation was investigated. Three voltage profiles having the same arithmetic average with respect to time were applied to the electrodes. The specific energy consumption for these profiles were evaluated and analyzed together with oil removal efficiencies. The effects of applied voltages, electrode materials, ...
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Improved Efficiencies in TOC Wastewater Analysis for Standard Method 5310B and USEPA Method 415.1
Abstract Total Organic Carbon (TOC) measurement is of vital importance to the operation of water treatment due to organic compounds comprising a large group of water pollutants. TOC has been around for many years, and although it is a relatively simple analysis in theory, operational efficiency is paramount. Laboratories are continually looking to increase sample throughput, decrease overall cost ...
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Phosphorus removal using nanofiltration membranes
A high concentration of phosphorus in wastewater may lead to excessive algae growth and de-oxygenation of the water. In this work, nanofiltration (NF) of phosphorus-rich solutions is studied in order to investigate its potential in removing and recycling phosphorus. Wastewater samples from a pulp and paper plant were first analyzed. Commercial membranes (DK5, MPF34, NF90, NF270, NF200) were ...
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Vortex-assisted surfactant-enhanced-emulsification liquid–liquid microextraction with solidification of floating organic droplet combined with flame atomic absorption spectrometry for the fast determination of cadmium in water samples
A novel vortex-assisted surfactant-enhanced-emulsification liquid–liquid microextraction with solidification of floating organic droplet (VSLLME-SFO) was developed for the fast, simple and efficient determination of cadmium (Cd) in water samples followed by flame atomic absorption spectrometry (FAAS). In the VSLLME-SFO process, the addition of surfactant (as an emulsifier), could enhance the ...
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Oil Industry Operation Wastewater Treatment Summaries
Oil Industry Operation Wastewater Treatment Wastewater on a self-contained drilling platform comes from several sources. The following examples are samples obtained from the seven oil-drilling platforms off of the coast of Nigeria. The first platform had samples from the industrial laundry, kitchen, emulsified wastewater, cutting oily-water and drilling mud. The samples were treated ...
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Oil Drilling Operation Wasteawater Treatment
Wastewater Treatment Success Stories Oil Industry Operation Wastewater Treatment Wastewater on a self-contained drilling platform comes from several sources. The following examples are samples obtained from the seven oil-drilling platforms off of the coast of Nigeria. The first platform had samples from the industrial laundry, kitchen, emulsified wastewater, cutting oily-water and ...
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Predicting the Toxicity of Oil-Shale Industry Wastewaters by its Phenolic Composition
Abstract : The chemical composition and toxicity of five phenolic wastewaters samples collected from the Kohlta-Järve (Estonia) oil-shale industry region were analysed. The total phenolic contents (HPLC data) of these samples ranged from 0.7 mg/l to 195 mg/l. A total of 11 phenol (up to 84 mg/l) and p-cresol (up to 74 mg/l). Artificial phenolic mixtures were also composed, to mimic the ...
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Processing Equipment Cleaning Wastewater Treatment
Process Equipment Cleaning Wastewater Treatability - 7 Wastewater Samples Tested Individually & Combined Using Floccin™ Integrated Engineers provided treatability services for a company that chemically cleans process equipment. They had 7 waste streams from the process onsite. The samples each contained various contaminants of alkaline solutions such as phosphates, potassium ...
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Soil-transmitted helminth eggs assessment in wastewater in an urban area in India
Water quality and sanitation are inextricably linked to prevalence and control of soil-transmitted helminth infections, a public health concern in resource-limited settings. India bears a large burden of disease associated with poor sanitation. Transformative onsite sanitation technologies are being developed that feature elimination of pathogens including helminth eggs in wastewater ...
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Bayesian modeling of virus removal efficiency in wastewater treatment processes
Left-censored datasets of virus density in wastewater samples make it difficult to evaluate the virus removal efficiency in wastewater treatment processes. In the present study, we modeled the probabilistic distribution of virus removal efficiency in a wastewater treatment process with a Bayesian approach, and investigated how many detect samples in influent and effluent are necessary for ...
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Infectious helminth ova in wastewater and sludge: A review on public health issues and current quantification practices
Raw and partially treated wastewater has been widely used to maintain the global water demand. Presence of viable helminth ova and larvae in the wastewater raised significant public health concern especially when used for agriculture and aquaculture. Depending on the prevalence of helminth infections in communities, up to 1.0 × 103 ova/larvae can be presented per litre of wastewater and 4 gm ...
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Matrix interference reduction for the analysis of carbohydrate in wastewater using H-point standard addition method
Soluble microbial products, consisting of protein, carbohydrate and humics, are generally considered as the main membrane foulants during the performance of membrane bioreactors. Nitrate and nitrite have been proved to affect the determination of carbohydrate when anthrone-sulfuric acid photometric method is used. In this study, three chemical analytical methods based on photometric assay, ...
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Flow-rate and pollution characteristics of domestic wastewater
The characteristics of the flow-rate and pollution parameters of the domestic wastewater of a medium-size city (Sivas, Turkey) have been investigated. The design and the operating parameters of a wastewater treatment plant appropriate to such a settlement were also studied. Daily and monthly flow-rate measurements and wastewater samples were taken at the outlet. Peak values of the flow-rate were ...
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Respirometry study of two different wastewater samples on COD fractioning & biodegradability for a specific activated sludge process and nitrification case study
Preliminary This service was made according to customer order points and indications from Hydrolab Microbiológica (Surcis collaborator) The client wanted Surcis to carry out a study about COD fractioning and nitrification. For this study the client has provided to Surcis the following: Process type: Activated sludge - Extended aeration 2 wastewater samples: the first one is a ...
By SURCIS, S.L.
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HF Pure Water’s Treatability Study (Bench-testing) Service
HF Pure Water, a division of HF Group, Inc., based in California, USA, offers, among its water treatment product-line, various AOP (Advanced Oxidation Process) application processes to treat customer-specific water and wastewater streams. As an integral and critical part of this technology offering, we are pleased to offer our bench-scale Treatability Study service for a small fee. Such a study ...
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