• Design and operation considerations for wastewater treatment using a flat submerged membrane bioreactor

    Started by Stojan Hornick on
    04 Dec 2013 at 04:18

    A resaerch paper from on" Design and operation considerations for wastewater treatment using a flat submerged membrane bioreactor " by Jin Kie Shima, Ik-Keun Yoob, and Young Moo Leea .


  • Ultraportable Greenhouse Gas Analyzer (UGGA), using only battery power, is applied to record chamber flux measurements of CO2 and CH4 flux over the frozen Lake Mendota in Madison, Wisconsin.

    Started by Vysakh Mohan on
    04 Dec 2013 at 03:43

    Students at the Desai lab at the University of Wisconsin-Madison are investigating how changes in the length of lake ice seasons influence the cycling of carbon dioxide and methane. Here a LGR Ultraportable Greenhouse Gas Analyzer (UGGA), using only battery power, is applied to record chamber flux measurements of CO2 and CH4 flux over the frozen Lake Mendota in Madison, Wisconsin. A small hole is augured over the lake and the chamber is quickly placed on top to capture the emissions of greenhouse gases out of the lake. -

  • how mangroves help in reducing flooding and coastal erosion

    Started by Vishakha S.Rajput on
    04 Dec 2013 at 03:10

    Did you know mangroves help to mitigate disaster risk and damage? Read more about how mangroves can play a key role in damage mitigation during disasters, as well as in stabilising coastlines here

  • Laser-based measurements of 18O/16O stable isotope ratios (δ18O) in wine samples

    Wine counterfeiting is an international, multi-billion dollar issue, with some estimates suggesting that up to 5% of wines sold at auctions or secondary markets are fraudulent. Isotope ratio mass spectrometer (IRMS) measurements of the 18O/16O stable isotope ratio (δ18O) of water-in-wine have been used for wine authentication; however, these analyses are time-consuming and costly. In this preliminary study, off-axis integrated cavity output spectroscopy (OA-ICOS) is used to quantify δ18O in wines. This laser-based method has been extensively used to study water isotopes for hydrological and medical applications. Recently, the development of a spectral contaminant identifier (SCI) has extended the application of these OA-ICOS analyzers to contaminated water samples (eg, plant, soil, and leaf waters). Here, we utilize OA-ICOS with the SCI to characterize wine samples (9%–15% ethanol), and show that the laser-based instrument provides a δ18O measurement precision of ±0.07‰ (1σ) and agrees with IRMS to within ±0.63‰ (1σ). Moreover, by training the SCI on isotopically-characterized wines, the agreement with IRMS improves to within ±0.30‰ (1σ). The utility of the instrument is demonstrated by measuring watered and mixed wines. The method presented here can be readily extended to address other food authentication applications.
  • New technology could detect radioactive threats in nuclear wastewater

    In light of the recent nuclear disaster at Fukushima's Daiichi nuclear power plant in Japan, scientists are reporting progress toward a new way to detect the radioactive materials known as uranium and plutonium found in wastewater.

  • Methods for calculating the runoff from a watershed as a part of water balance study.

    Hi this is Pandit Pandit from India and I am working in watershed development project. Recently we have undertaken a watershed of 1000 hector for development. We need to calculate the total runoff from this watershed as a part of water balance study. I am looking out for some good and reliable methods to estimate the total runoff from this area. The average rainfall of the region is 2500 mm and the soil is sandy loam to loam , with slope of 5 to 30 %.. 

    Hope to get some good suggestions, thank you.


  • Algasol Renewables

    Micro algae are by many considered as the most promising next generation biofuel feedstock.

    Algasol Renewables is a technology company with a unique technology for low-cost production of micro algae biomass in a closed environment. The technology is a flexible multi-compartment photobioreactor floating on water that can be deployed both on land in ponds or in the ocean. A patent pending in national phase in all relevant PCT countries covers all key aspects of the technology.


    PO Box 1
    Esporles E-07190
  • OxyMem

    OxyMem is a breakthrough technology for wastewater aeration. Up to now this has been a very energy intensive process which has relied on forced, or ‘bubble aeration to deliver oxygen to the bacteria that breakdown. Pumping and treating wastewater typically accounts for up to 2.5% of all electrical power produced in a developed country. The Aeration process comprises of 60% of this energy, on average.


    Ball Alley Lane
    Athlone NA
  • Innovative Membrane Technologies

    IMT’s membrane filters reliably remove bacteria, viruses and suspended solids from drinking, process, industrial and wastewater without the need for the addition of further disinfecting chemicals, such as chlorine. It is IMT’s business to help you purify water; to help you realise that clean water is the essence of life.


    Mast 23
    Zeewolde 3891 KE
  • TMW Technologies

    Through the observation of oceans TMW came to understand it is possible to evaporate water at atmospheric pressure and low temperature. Once the vaporized water condensates, it becomes fresh demineralized water. This has been water’s natural recycling process for billions of years…

    TMW invested 10 years of research & development to reproduce Water’s Natural Cycle in a contained module with low maintenance and low energy needs.

    Our solutions are adaptable from small installations to industrial size plants.


    6 place de la République Dominicaine
    Paris 75017
  • Chahtech

    Considering the problems of water in the arid and semi arid regions in the world, our team (lead by senior scientific researchers specialized in water economy and efficient use of hydraulic resources), spent more than 25 years experimenting new techniques for irrigation and for the injection of retention water or natural sources water to be conserved in the deep soil. These researches results are an innovative technique which is called: The Buried Diffuser . This worldwide patented (PCT) invention was awarded multiple times.


    BP 466 Houmt Souk
    Djerba 4180

    A GIS BASED GROUNDWATER MANAGEMENT TOOL FOR LONG TERM MINERAL PLANNING A research paper by Mauro Prado, Hydrogeologist - SRK Consulting, Perth, Australia and Richard Connelly, Principal Hydrogeologist - SRK UK Ltd, Cardiff, United Kingdom
  • A GIS-Based Ground Water Contamination Risk Assessment Tool for Pesticides

    A GIS-Based Ground Water Contamination Risk Assessment Tool for Pesticides Article by by Michael G. Sinkevich Jr., M. Todd Walter, Arthur J. Lembo Jr., Brian K. Richards, Natalia Peranginangin, Sunnie A. Aburime, and Tammo S. Steenhuis
  • Futuristic water-recycling shower cuts bills by over $1,000

    In space, astronauts go for years without a fresh supply of water. Floating in a capsule in outer space they wash and drink from the same continuously recycled source. So why, asked Swedish industrial designer Mehrdad Mahdjoubi, do we not do the same on Earth?

    This was the concept behind the OrbSys Shower -- a high-tech purification system that recycles water while you wash. In the eyes of Mahdjoubi, we should start doing it now, before it becomes a necessity.

  • NMQ

    NMQ S.A. is the owner of the unique chemical-free, eco-friendly water treatment system DEFERUM™.

    NMQ S.A. is a Swiss company founded with the purpose to proliferate the water purification technology DEFERUM™.

    The company's activity in various countries of the world is focused on the design and implementation of water treatment stations using the DEFERUM™ water purification system. NMQ S.A. uses unique processes and has developed over a course of 25 years a technology while designing and improving on the DEFERUM™ system.


    Rue du Cendrier 15
    Geneve 1201
  • Gozo Enterprises Ltd

    Sargent Enterprises Ltd is controlled by Gozo Enterprises Ltd, which owns the intellectual property for the SWP.


    Not Listed
    Fgura FGR1614
  • Dutch Rainmaker

    Dutch Rainmaker is a young technology driven innovative company. We are working on new and revolutionary concepts for the production of fresh water. Located in Leeuwarden Dutch Rainmaker forms a consortium with several institutes and companies and is constantly working on further expansion of this consortium in order to facilitate a fast and broad introduction of the Dutch Rainmaker concept worldwide.

    Our products offer an environmentally friendly and sustainable solution for a worldwide problem!


    Schipholweg 275
    Badhoevedorp 1171 PK
  • Europe begins smart water project rollouts

    Acciona Agua, the water services division of Acciona, a global renewable energy, infrastructure and water services group, will deploy Spain's first smart water grid in the western city of Cáceres as part of a European project that aims to apply new technologies to the management of drinking water networks.

  • Exergy Technologies Corporation

    Exergy Technologies Corporation provides advanced membrane and electrochemical separation technologies for the recovery of valuable process materials, and the reuse of water.
    Technologies. Exergy’s technologies involve a variety of membrane and electrochemical principals to solve broad industrial problems. Exergy’s advanced membrane-based systems, include Advanced Diffusion Dialysis (DD), Continuous Electrodeionization (CEDI), Membrane Electrolysis (ME),Electrodialysis (ED) and Reverse Osmosis (ARO).


    5941 Optical Court
    San Jose 95138
    United States
  • Tidal Sails

    Tidal Sails is a Norwegian company developing and constructing energy solutions which generate electricity from ocean currents and tidal streams. Pultrusion composite sail profiles pull two belt loops with the current at an angle, capturing energy and converting it into clean electricity. Linearly moving sails have some inherent advantages over rotating turbine solutions when it comes to extraction efficiency, weight and maintenance, thus dramatically reducing the cost of the electricity.


    Strandgata 130
    Haugesund 5527
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