organics analysis Articles
-
Fate of organic pollutants in a pilot-scale membrane bioreactor-nanofiltration membrane system at high water yield in antibiotic wastewater treatment
A double membrane system combining a membrane bioreactor (MBR) with a nanofiltration (NF) membrane at the pilot scale was tested to treat real antibiotic wastewater at a pharmaceutical company in Wuxi (China). The water yield of the pilot system reached over 92 ± 5.6% through recycling the NF concentrate to the MBR tank. Results showed that the pilot scale system operated in good ...
-
Total Nitrogen and Total Organic Carbon Analysis by High Temperature Combustion
Abstract Modern High Temperature Combustion (HTC) technology with Chemiluminescence detection (CLD) provides a fast and efficient way to monitor nitrogen loading by Total Nitrogen (TN) analysis. Nitrogen monitoring can be an integral function for the process control of wastewater treatment and other industrial applications, including seawater analysis. Due to the fact that TN analysis can be ...
-
Degradation of humic acid from water by advanced electrochemical oxidation method
In this study, the electrooxidation treatment method using boron-doped diamond (BDD) electrodes was investigated for the degradation of humic acid (HA) following absorbance at 254 nm (A254), color (A436) and total organic carbon (TOC) analysis. Also, a surrogate SUVA254 parameter was used to evaluate the aromatic carbon content. Prior to the application of the electrooxidation for HA degradation ...
-
Investigation of the efficiency of a tubular continuous-flow photoreactor with supported titanium dioxide nanoparticles in the removal of 4-nitrophenol: operational parameters, kinetics analysis and mineralization studies
In this study, to investigate the application of heterogeneous photocatalysis in the removal of organic contaminants from aqueous media a novel tubular continuous-flow photoreactor with supported TiO2-P25 on glass plates was designed and constructed. The photoreactor comprises six quartz tubes and a UV lamp which was placed in the center of the quartz tubes. 4-nitrophenol (4-NP) as a most ...
-
Multispecies acute toxicity evaluation of wastewaters from different treatment stages in a coking wastewater‐treatment plant
Coking wastewater contributes approximately 5% of the total discharge volume of industrial wastewaters every year in China. The toxicity of coking wastewater to aquatic organisms is still unknown. The authors evaluated the toxicity of wastewater from different treatment stages in a coking wastewater treatment plant, South China, using 5 test species belonging to different trophic levels: ...
-
On line analysis of organic in water case study
Introduction On line chemical analysis has been developed significantly thanks to digital electronics' use of microprocessors together with the application of sophisticated and accurate analytical techniques. The result of this combination is readily available technology which allows for on line performance of almost any analytical determination for quality control which is normally made in a ...
-
Use of anthropogenic gadolinium as a tracer for bank filtrate in drinking water wells
Knowledge of the amount of bank filtrate in raw water is crucial for drinking water suppliers using water wells in close proximity to rivers, in particular if those rivers are strongly affected by anthropogenic activities, e.g. receiving effluents from waste water treatment plants. Analysis of organic micropollutants as tracer compounds is costly and time-consuming, and results may be biased by ...
-
Anaerobic digestion in Sweden - status and experiences
The implementation of biogas technology has in general increased in Sweden over the last 4-5 years. The main reason for this development is the effort to replace landfilling of nutrient-rich, wet organic waste with sustainable alternatives. In accordance with the EU directive on landfilling, a tax on putting organic waste into landfills will be introduced the 1st of January 2000, together with a ...
By ORBIT e.V.
-
Characterization of organic fouling in reverse osmosis membranes by headspace solid phase microextraction and gas chromatography–mass spectrometry
Adsorption of organic substances on reverse osmosis (RO) membrane surfaces may form an organic film on the membrane, known as organic fouling, and cause flow-rate loss. This problem is mostly unavoidable as no pretreatment method exists for perfect removal of possible foulants, including organic compounds resulting from undesirable bioactivity. Understanding the characteristics of fouling ...
-
Energy analysis of conventional and source-separation systems for urban wastewater management using Life Cycle Assessment
This study investigates the cumulative energy demand (CED) of different systems for the management of urban wastewater, following the methodology of Life Cycle Assessment. In a hypothetical case study for an urban area (5,000 inhabitants), all relevant processes for wastewater collection and treatment and the construction of infrastructure are described in a substance flow model. The conventional ...
-
Water quality testing: solutions from catchment to waste
Globally, over 80% of the wastewater generated by society flows back into the environment without being treated or reused.1Clean water is an essential part of daily life, from catchment all the way through to wastewater treatment, therefore analysis throughout the whole cycle is crucial. Whether in lakes, pipes, or bottles, we can accompany you with our range of instruments, test kits and ...
-
Study: Organic Substances in Surface Waters Complex, Potentially Harmful
Compounds, some biologically active, were found even in remote areas A new study shows the pollutant mixtures found in surface-water samples collected throughout the U.S. are more chemically complex than expected. The compounds not only have the potential to harm aquatic species, but also may have adverse implications for human health The study was based on prior similar studies conducted ...
-
European wastewater analysis shows drug-use patterns
Residents of London and Antwerp are using more cocaine than residents of any other major European cities based on a new examination of wastewater. Londoners are using cocaine the most during the work week — which the study defines as Tuesday, Wednesday, and Thursday — at 790.5 mg per 1,000 people per day, while Antwerp leads on weekend use — Friday, Saturday, Sunday and Monday ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you