organic absorbent Articles
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Determining flammability of SpillFix Universal Organic Absorbent
SpillFix Universal Organic Absorbent is an industrial absorbent product made from natural coir (coconut husk). Flammability tests (as detailed below) have determined that the product is a Not Readily Combustible Solid, and is unlikely to catch fire even after absorbing flammable spills. Determining Flammability The tests for determining flammability of the SpillFix Universal Organic Absorbent ...
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Fabrication of polysiloxane-modified polyurethane sponge as low-cost organics/water separation and selective absorption material
Through sol-gel and dip-coating processes, commercial polyurethane sponge modified by polysiloxane was fabricated under low temperature (60 °C) and atmosphere. The contact angle of the obtained polysiloxane/polyurethane sponge is 145 ± 5°. Hence, the polysiloxane/polyurethane sponge could float on water and selectively absorb organics from the surface of the water, indicating simultaneous ...
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Using constructed wetland systems to remove solids from highly polluted river water
The Erh-Ren River is located in southern Taiwan and is one of the most polluted rivers in Taiwan. A pilot-scale constructed wetlands (ERRCW) system containing a free surface flow wetland (FSF) followed by a subsurface flow wetland (SSF) was set up to treat the polluted river water. The system was designed to include solids removal. A removal efficiency of suspended solids (SS) in the ERRCW system ...
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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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Virus removal by an in-line coagulation–ceramic microfiltration process with high-basicity polyaluminum coagulation pretreatment
The ability of in-line coagulation pretreatment with high-basicity polyaluminum chloride (PACl) coagulants to enhance virus removal by ceramic microfiltration (MF) was examined by comparing virus removal efficiencies from water pretreated with PACl-2.2 (basicity 2.2) and PACl-2.5 (basicity 2.5) versus alum, a synthetic aluminum chloride (AlCl3) solution, and two commercially available PACls, ...
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Decreased UV absorbance as an indicator of micropollutant removal efficiency in wastewater treated with ozone
Ozone transforms various organic compounds that absorb light within the UV and visible spectra. UV absorbance can therefore be used to detect the transformation of chemicals during ozonation. In wastewater, decolourisation can be observed after ozonation. This study investigates the correlation of the UV absorbance difference between the ozonation inlet and outlet and the removal efficiency of ...
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Membrane fouling mitigation by activated carbon addition in activated sludge filtration
Activated carbon (AC) was added into the activated sludge to alleviate membrane fouling during sludge microfiltration. The fouling mitigation profiles were evaluated at different AC sizes and doses by a single-fibre microfiltration system. It was found that the granular AC added in the sludge suspension can absorb the organic substances in the sludge in a certain level, including biopolymer ...
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Some Useful solutions for keeping your toilet clean
The toilet is like the bathroom. It is a moist area of the home or offices due to the volume of water in the cistern, and as we know - microorganisms or germs love a humid prone area to breed in. Bacteria in the toilet absorb organic waste and release gases with bad smell. Bacteria can generally be found in the toilet bowl area but they are also hidden on the seat, the flush, the floor, and the ...
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Statistical significance testing of parallel pilot-scale coagulation optimization study to compare aluminum sulfate and polyaluminum chloride performance
A 14 month pilot-scale coagulation optimization study was conducted at the Peterborough Water Treatment Plant (Ontario, Canada) to compare treatment performance resulting from the application of aluminum sulfate vs. polyaluminum chloride (PACl). This paper describes results obtained from applying a statistical analysis approach to evaluate impacts on pH, turbidity, total organic carbon (TOC), ...
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Organic matter removal in bio-filters to achieve biologically stable water downstream of the process
Organic removal contaminants reclamation has increased over the past years as it has many advantages over other treatments. Product water from water treatment plants can be chemically complex resulting in physical and biological changes during transportation in the distribution systems. The general aim of this study was to evaluate the effectiveness of biofilters for reducing the ...
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Removal of humic substances using solar irradiation followed by granular activated carbon adsorption
This study proposed a new method using freely available sunlight and granular activated carbon (GAC) adsorption for enhanced removal of humic substances (HS). Experiments were carried out under natural sunlight conditions in winter and summer. A parabolic solar collector (PC) was applied to concentrate solar energy. HS were characterized by UV254 absorbance, dissolved organic carbon (DOC) ...
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What is Dissolved Oxygen?
Dissolved Oxygen (DO) is a measurement of how much oxygen is dissolved in water. This measurement, along with temperature and pH, can tell us a lot about water quality. Oxygen is vital to all complex life, so it is crucial that scientists can measure accurate dissolved oxygen levels when determining the health of aquatic environments. Dissolved oxygen in particular is an important environmental ...
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Electrochemical oxidation of wastewater containing aromatic amines using a flow electrolytic reactor
Aromatic amines are environmental pollutants and represent one of the most important classes of industrial and natural chemicals. Some types of complex effluents containing these chemical species, mainly those originated from chemicals plants are not fully efficiently treated by conventional processes. In this work, the use of electrochemical technology through an electrolytic pilot scale flow ...
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Post-treatment of anaerobic effluent by ozone and ozone/UV of a
kraft cellulose pulp millPulp and paper mill effluents represent a challenge when treatment technologies are considered, not only to reduce organic matter, but also to reduce the toxicological effects. Although anaerobic treatment has shown promising results, as well as advantages when compared with an aerobic system, this process alone is not sufficient to reduce recalcitrant compounds. Thus, an advanced oxidation ...
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United States EPA Method 415.3
Abstract In order to ensure drinking water is safe for human consumption, water treatment plants often add disinfectants to drinking water. The disinfectants, such as chlorine, protect drinking water from pathogens, disease causing organisms, but can react with naturally occurring materials in the water to form byproducts that may be harmful for consumption. The United States Environmental ...
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Pilot scale experiments on surface water treatment sequence including ozonation and adsorption processes
The paper presents results of the experimental studies on combined ozonation and activated carbon adsorption processes at the Water Treatment Plant (WTP) at Cracow (Poland). The study focused on the selection of an appropriate location of an ozonation process within the treatment scheme and on the choice of activated carbon grade for adsorption. Analysis of process efficiency in the proposed ...
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Confirmation of the correlation between membrane fouling in microfiltration and biopolymer concentrations in various Japanese surface waters
A variety of surface waters used for drinking water sources were collected from different parts of Japan to investigate a correlation between the concentration of hydrophilic biopolymer (e.g. proteins and polysaccharides) in the feed water and membrane fouling in microfiltration. Hollow-fiber membranes made from polyvinylidene fluoride with a nominal pore size of 0.1 μm were used in the ...
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Sorption and resistant desorption of Atrazine in typical Chinese soils
Atrazine is one of the most commonly used herbicides and is produced and used in large quantity worldwide. In the present study, the sorption and desorption of atrazine in five typical Chinese soils were examined. The sorption of atrazine followed the conventional linear isotherm reasonably well, indicating that sorption was driven largely by hydrophobic partitioning into soil organic matter. ...
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Organics Monitoring (TOC)
Total organic carbon (TOC) testing is the traditional method for determining organic matter in water. However there is a far more practical, affordable and often more useful way to measure organic matter. UV absorbance testing (UVA) is rapidly becoming the preferred method of measuring organics even when the levels of organics being measured are very small. Organic Matter Organic matter in water ...
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Clearing up the confusion about TSS and turbidity
Over the years, we’ve found there’s a lot of confusion about suspended solids and turbidity. Unfortunately, that holds back good water monitoring, so we thought it’d be helpful to bring some clarity to the subject—if you’ll excuse the pun. We’ve thought this through carefully because we’ve developed Phathom sensors that can directly measure turbidity and ...
By Phathom
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