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Showing 1 to 18 of 18 for “"heavy metal removal"”.
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Heavy metal removal from bilge water by electrocoagulation treatment
… purpose of this research was to observe the removal efficiency for copper (Cu), nickel (Ni), and zinc (Zn) using Electrocoagulation (EC) technique in a continuous flow reactor with a synthetic bilge water emulsion; and additionally, to discuss the operation cost of the treatment. The optimal …
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LOW IMPACT DEVELOPMENT MIXTURE EVALUATION FOR HEAVY METAL REMOVAL
To address non-point heavy metal pollutant sources to urban stormwater runoff, the LIDMATTM (Low Impact Development MAT) is a stormwater management runoff system designed and manufactured for effective treatment for heavy metals. The LIDMATTM contains approximately 70% sand, 25% manure compost, and …
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Design of High Efficiency Fibers for Ion Exchange and Heavy Metal Removal
… substrate, for the purpose of arsenite (As3+) removal from water. Physical/chemical aspects of naturally occurring thiols and disulfides was used to draw parallels to observations found with the polyvinyl alcohol mercaptyl system and its reactivity towards arsenite. The ability of these systems …
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Permeable Reactive Concrete For Enhanced Heavy Metal Removal With Optimization Of Individual Components
Catastrophic release of heavy metals in Colorado, U.S or Minas Gerais, Brazil exposed the importance heavy metal contamination have on the surrounding peoples and environment. Permeable reactive barriers (PRBs) are an effective method of remediation the use a reactive media to passively remove …
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Integration of Metal-Organic Frameworks with Electrospun Fibers for Heavy Metal Removal and Carbon Dioxide Capture
… contamination of water sources with toxic heavy metals represent two of the most pressing environmental challenges of the 21st century. Efficient and scalable materials capable of capturing CO2 and removing pollutants such as Pb(II) and Cu(II) are urgently needed to mitigate climate change …
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Synthesis and characterisation of low-cost biopolymeric/mineral composite systems and evaluation of their potential application for heavy metal removal
Heavy metal pollution and waste management are two major environmental problems faced in the world today. Anthropogenic sources of heavy metals, especially effluent from industries, are serious environmental and health concerns by polluting surface and ground waters. Similarly, on a global scale, …
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Nanotechnology and Biotechnology for Water Treatment: A Comparative Study
… costs. For instance, chemical precipitation for heavy metal removal is effective only when the metal concentration is low; while other methods require long contact times, are ineffective at low metal concentrations between 1-100 mg/L, and are, in most cases, expensive because they require energy …
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Removal of Heavy Metals Using Modified Limestone Media: Zinc and Cadmium
<p>Heavy metal contamination is a serious concern throughout the world. Increased concentrations in drinking water have many negative impacts on human health. Limestone is an inexpensive and simple media for removing high concentrations of heavy metals from drinking water supplies. Ferric based …
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Removal of Heavy Metals from Drinking Water by Adsorption onto Limestone with a Focus on Copper and Aluminum Applications
<p>Elevated levels of arsenic and other heavy metals like copper, aluminum, zinc, and selenium in drinking water are found to have deleterious effects on human health. Hence, finding methods for reducing their levels is critical. Iron-coated limestone is used as an adsorption material for the …
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Removal of nutrients and heavy metals from domestic and industry using botryococcus sp.
… process, to optimize the physiochemical and heavy metal removal in different types of wastewaters and to evaluate the effectiveness of Botryococcus sp. to remove the pollutants in wastewaters. Phycoremediation or bioremediation process is using macroalgae or microalgae for removing …
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Design of advanced reverse osmosis and nanofiltration membranes for water purification
… (> 95%) and selectivity for multivalent heavy metal removal was achieved. (2) Fouling resistant NF membranes. Antifouling membranes are highly desired for “all” applications because fouling will lead to higher energy demand, increase of cleaning and corresponding down time and reduced …
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Formation and Characterisation of Nanostructured Polypyrrole Films: Their Growth on Membrane Supports and Application in Heavy Metal Remediation
… to regulate dangerous substances, including heavy metals. These include chromium, nickel, lead, zinc and arsenic. The natural concentrations of these metals in water vary depending on the metal content of the surroundings, but they may also enter the environment from a range of anthropogenic …
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Squaramide- and Urea-based Supramolecular Gels: Characterization and Environmental Applications
… materials that can be used as adsorbent for the removal of different classes of pollutants from water matrices. This thesis explores the synthesis and characterization of eighteen new low molecular weight gelators (LMWGs), eleven based on the squaramide scaffold and seven based on the urea …
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Use of magnetic nanoparticles for wastewater treatment
… dichlorodiphenyltrichloroethane (DDT) and heavy metals like mercury, lead and manganese are among the ubiquitous trace contaminants of marine and freshwater systems. Presence of these contaminants raise concerns as small quantities of the organic chemicals have been shown to be carcinogenic …
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Investigating adsorption characteristics of Delonix regia for heavy metals removal in wastewater and its potential for remediating contaminated soils
… adsorbents and study their feasibility for heavy metal removal with the aim of finding which is a better alternative to activated carbon. The focus of the present study is on investigating the adsorption characteristics of Delonix regia for the sorption of Pb, Ni, Cu, Cd and Co from polluted …
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The Innovative Use of Electrocoagulation-Microwave Techniques for the Removal of Pollutants from Water
… sacrificial anode. In this technique, pollutant removal is done without adding chemicals; therefore, it remarkably reduces the sludge produced, and consequently reduces the cost of sludge handling. This method has been efficiently used to remove, up to 99%, of a wide range of pollutants such as …
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Untersuchungen zur Selektivität unterschiedlich substituierter Iminodiessigsäure-Ionenaustauscher gegenüber zweiwertigen Metallionen
Zur selektiven Entfernung von Schwermetallen aus industriellen Abwässern und Prozesslösungen der metallverarbeitenden Industrie werden synthetische metallkomplexierende funktionelle Polymere – mit Iminodiessigsäure (IDE) als aktive Spezies – seit Jahren erfolgreich zur Eliminierung störender …
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Linking microbial community dynamics and performance of a biological sulphate reducing system using a mixed volatile fatty acid stream as electron donor
… quality by lowering its pH and increasing its metal and sulphate loading, thus making it unsuitable for use by many forms of life. AMD must therefore be treated before entering nearby water systems and soils. An effective treatment technology is considered as the one that can result in water …