University of Vigo posted this:Innovative process for the removal of persistent organic pollutants present in wastewater streams.This is the first time that surfactants-based aqueous phase segregation has been proposed for the remediation of aromatic organic pollutants. Up to know, biological degradation was used alone or in combination with other physical and chemical methods (e.g. volatilization, sorption, electrokinetic, oxidation, extraction with supercritical fluids, etc.), that often entail economic and environmental disadvantages. Therefore, the proposed strategy is an environmentally friendly alternative that entails benefits such as low energy consumption, low cost, availability of reagents at bulk quantities and easy implementation.
Laser Consult Ltd. posted this:Innovative Technology to Utilize and Recycle Sewage SludgeOur partner, a Hungarian company, developed a patented technology that provides a solution for transforming municipal sewage sludge into solid fuel (Solid Recovered Fuel -SRF), which also enables sewage plants to achieve significant cost savings. The company is looking for potential licensing partners in the field of sewage plant construction and operation.
Eduard Hernandez Balada posted this:
Freelancer at Bioconservacion
Universitat de Girona posted this:OMBR - OMBReuse (MBR retrofit to OMBR)The proposed technology is a concept that combines OMBR (osmotic membrane bioreactor) with MBR (membrane bioreactor) in a single module therefore it reduces the difficulties of installation and simplifies the operation system. Thus, this technology would renew all or part of the existing systems without the obligation to increase the volume installed and associated civil engineering costs. The fact that the OMBR modules are designed like the MBR module allows using the two types of membrane processes in the installed system.
Universidad de Alicante posted this:Simultaneous determination of anion and cation content in water samples through ICP-AESThe main innovation of the present system is the development of a single method allowing the sequential preparation and automatic quantification of ionic species in water samples employing a commercially available ICP-AES.
uacoopera posted this:Process for converting waste, effluents and organic by-products in recyclable materialsA group of researchers from a Portuguese university has developed a biological process to treat waste, effluents and organic by-products with industrial origin characterized by high biodegradability that adds value to conventional biological treatment processes, integrating their assumptions on the concept of biorefinery. The invention aims to reduce by 96% the organic matter content of the starting substrate allowing generally meet the discharge criteria set out in the legislation.
Cracow University of Technology posted this:New way of detection Cryptosporidium and Giardia protozoa.Advantages of the technology: - Our method is sensitive, reproducible, species-specific and inexpensive way to detect Cryptosporidium sp. oocysts ad Giardia intestinalis cysts in various environmental samples. - There is not necessary to use highly specialized and expensive equipment. All the materials for realizing the invention (chemical reagents and equipment etc.) are commercially available. - It is not requirement the use of toxic flammable solvents to ensure the safety of personnel conducting the test. - The use of appropriate materials, allowed to simplify and shorten the work, to improve the reproducibility of detection and reduce the cost of detection procedure. - To achieve sensitive detection method allows subjecting the examination of much smaller volumes of liquid samples in comparison with that provided by the USEPA protocols (United States Environmental Protection Agency).
University of Vigo posted this:New sustainable adsorbent for bleaching efficient industrial effluentsMany industries, such as those belonging to the textile, wine, and paper industry, consume huge volumes of water and, as a result, generate a large amount of contaminated water containing persistent colour pollutant compounds. These compounds represent an environmental and health threat due to their well-known associated problems, such as carcinogenicity, toxicity and mutagenicity. Furthermore, they entail a great environmental impact when discharged in aquatic environments, perceptible at very low concentrations, creating an undesirable visual impact, which, in many cases, does not meet the degree of conformity under the current directives on the wastewater treatment for industrial effluents (Directive 91/271 / EEC). The solution proposed by the research group Chemical Engineering at the University of Vigo, is the use as adsorbent of peat, or a similar lignocellulosic material, immobilized in calcium alginate beads. This process is efficient, cheap and environmentally friendly, unlike other processes and technologies. In fact, the utilization of peat instead of activated carbon as industrial adsorbent has the advantage that peat requires no activation, unlike activated carbon, reducing operating costs. In addition, the low cost of the adsorbent would be translated into significant economic benefits. Moreover, depending on the contaminant removed from the waste effluent, the exhausted adsorbent may be used as soil fertilizer at its end of life.
IMDEA Water Institute posted this:Permeable reactive beds for groundwater recharge with reclaimed wastewaterAt IMDEA Water Institute, in association with the Alcalá University and the Rey Juan Carlos University, we implement Permeable Reactive Beds technology as a wastewater reclamation treatment for application in artificial groundwater recharge activities. This technology is considered an in situ passive treatment, based on reactive materials which act as a filter for the water that goes through it. The filter retains or sorbs the chemicals, improving the water quality. This technology is the result of combining two well-known remediation techniques: SAT – Soil Aquifer Treatment and PRB – Permeable Reactive Barrier) (Fig.1). The main contribution of Permeable Reactive Beds technology is that it includes several layers of different reactive materials (natural or artificial), forming a horizontal barrier, so that the pollutants are removed from the water and are retained or modified by the solid phase through physical, chemical and/or biological processes (including precipitation, sorption, redox and degradation). Many parameters have influence over these processes, such as pH, redox potential, concentration or temperature. Permeable Reactive Beds can be settled either on the ground (superficial setting) (Fig. 1b) or in a trench (dug) (Fig. 1a). This horizontal position ensures reclamation of the water that flows through the bed.
IMDEA Water Institute posted this:Membrane technology and Transformation of disposed reverse osmosis membranes into recycled membranesMembrane technology is the generic term used for any separation process in which membranes are employed. A membrane can be defined as a physical barrier separating two phases and allowing a selective transition of compounds from one phase to the other. The part that goes through the membrane is the permeate and the part that is rejected by the membrane is the retentate (Figure 1, Membrane technology separation scheme). Membrane technology can be applied for purposes such as: • Water purification: undesired impurities are removed from the solution. For example: soft water production by removal of calcium and magnesium cations • Concentration: required components are present at a low concentration and the solvent is removed. For example: concentrating fruit juice by removing water • Fractionation: a mixture must be separated into two or more desired components. For example: milk fractionation in the dairy industry Membranes can be classified depending on the compounds that membranes are able to separate (Figure 2, pressure driven membranes).
Centre Technology Transfer CITTRU posted this:Biological method of reducing excessive growth of filamentous bacteria in activated sludge in wastewater treatment plantsThe subject of the offer is a biological method of reducing excessive growth of filamentous bacteria in activated sludge in wastewater treatment plants. The invention uses organisms naturally occurring in the activated sludge - rotifers, which eliminate filamentous bacteria that cause bulking of activated sludge - one of the most prevailing and most serious problems in sewage treatment plants
uacoopera posted this:Electrochemical biosensor for the detection and quantification of alkylphenols.A group of researchers from Portuguese university developed a biosensor for the detection and quantification of alkylphenols (AP). This invention constitutes a fast, efficient and accurate method for the quantification of these contaminants, found in items ranging from detergents and pesticides to plastics, textiles and fuels. The apparatus has already been successfully tested in real samples and demonstrated to be faster and more efficient than the commonly used techniques for the quantification of AF, not requiring additional steps, namely, for sample preparation.
Universidad de Alcalá-OTRI posted this:Bioremediation strategy in situ for the precipitation and immobilization of uranium and other toxic elements in contaminated soils.A research group from the Geology Department of the University of Alcalá is developing a technology to study the role of the oxidation-reduction processes of humics in the reduction of uranium and other toxic metals in contaminated soils to determine whether stimulating the activity of humic-reducing and oxidizing microbial communities in contaminated soils can be an effective strategy for the in situ immobilization of uranium and other toxic metals. The group is looking for technical cooperation projects with companies.
Fundació URV posted this:Catalytic wastewater treatment for organic matter removalThe catalytic technology allows you to remove high concentrations of COD (40.000-200.000ppm) at atmospheric pressure. All kind of organic compunds are removed (biodegradable and non biodegradable ones). The catalyst life is around 2-3 years. It is an exothermic process, so the energy needed for the process is just for the start up. The process works at 250-350ºC.
uacoopera posted this:Graphene oxide macrostructure for the removal of heavy metals from contaminated watersA group of researchers at the University of Aveiro developed a graphene based material capable of removing mercury from contaminated water. The invention consists on the functionalization of three-dimensional structures of graphene in order to increase the affinity to mercury, the subsequent encapsulation in a permeable casing facilitate its removal from the aqueous medium. The main advantage of this system lies mainly in their high mercury removal efficiency, ease synthesis process, low cost and the possibility of its application in locations that do not have specific infrastructure.