Three emerging treatment technologies, including membrane filtration, advanced oxidation processes (AOPs), and UV irradiation, hold great promise to provide alternatives for better protection of public health and the environment and thus are reviewed in this paper. The emphasis was placed on their basic principles, main applications, and new developments. Advantages and disadvantages of these technologies are compared.
CPCB (2010): Status of Water Treatment Plants in India. CENTRAL POLLUTION CONTROL BOARD (CPCB) URL [Accessed: 22.05.2019]Library
This position paper provides an overview discussion on the practice of chlorination in water treatment. The discussion covers the following topics: general chlorination practice, chlorine disinfection capabilities, by-product formation, current regulations and use of alternative oxidants for disinfection.
BRAGHETTA, A. JACANGELO, J. TRUSSELL, R.R. MEHEUS, J. (1997): The Practice of Chlorination. Application, Efficacy, Problems and Alternatives. Colombo: The International Water Association (IWA) URL [Accessed: 22.05.2019]This manual from EPA provides technical information on the use of membrane filtration and application of the technology.
EPA (2005): Membrane Filtration Guidance Manual. Washington D.C.: Environmental Protection Agency (EPA) URL [Accessed: 22.05.2019]This chapter considers various processes for the removal of microbes from water. In particular, it discusses: pre-treatment; coagulation, flocculation and sedimentation; ion exchange; granular filtration; slow sand filtration.
WHO (2004): Chapter 2. Removal Processes. In: LECHAVELLIER, M. and AU, K-K (eds). Water Treatment and Pathogen Control - Process Efficiency in Achieving Safe Drinking Water. London (UK): World Health Organisation (WHO). IWA Publishing, pp. 05-40. URL [Accessed: 22.05.2019]This article outlines some key features of these membrane-based technologies and describes how they can be adapted to supply safe drinking water in remote communities and rural regions from the developing world.
FARCY, M. ; DOUCOURE, A. (2010): Membrane Systems for the Fight against Water-Borne Contaminants in Small Communities and Remote Areas from the Developing World: Accomplishments in Thailand and Some New Development in Sénégal and Mali . In: The Open Biology Journal: Volume 3 , 74-80. URL [Accessed: 22.05.2019]This report presents a literature review on nanofiltration.
THORSEN, T. FLOGSTAD, H. (2006): Nanofiltration in Drinking Water Treatment. Nieuwegein, The Netherlands: Techneau URL [Accessed: 22.05.2019]This article presents a review of the technologies and processes which are used for water and wastewater treatment in order to remove the various constituents of the polluting load: solids organic carbon, nutrients, inorganic salts and metals, pathogens. A second part describes the advanced processes to reuse treated municipal effluents in agriculture and industries and the main technologies used for desalination.
BOARI, G. ; MANCINI, I.M. ; TRULLI, E. (1997): Technologies for Water and Wastewater Treatment. In: Séminaires Méditerranéens: Volume 31 , 261-287. URL [Accessed: 22.05.2019]Check out the movie about this low cost rollable water container for developing countries
This document is about the combination of ultrafiltration and reverse osmosis for the production of deionised water from surface waters.
CLEVER, M. ; JORDT, F. ; KNAUF, R. ; RABIGER, N. ; RUDEBUSCH, M. ; HILKER-SCHEIBEL, R. (2000): Process Water Production from River Water by Ultrafiltration and Reverse Osmosis . In: Desalination: Volume 131 , 325-336. URL [Accessed: 22.05.2019]A three-page factsheet containing information on treatment efficiency, operating criteria and other relevant information on chemical coagulants.
CAWST (2009): Chemical Coagulants. (= Household Water Treatment and Safe Storage Fact Sheets ). Calgary: Centre for Affordable Water and Sanitation Technology (CAWST) URL [Accessed: 21.05.2019]Technical solutions for the construction of your own slow sand filters are presented.
WATER FOR THE WORLD (n.y): Constructing a Slow Sand Filter. Vienna: Water for the World. Technical Note, No. RWS. 3.C.3 URL [Accessed: 21.05.2019]This paper discusses different features of Moringa oleifera seed and assesses it as a potential alternative to aluminium sulphate for water treatment in rural and urban areas. Paper presented on 27th WEDC Conference in Lusaka, Zambia.
NKHATA, D. (2001): Moringa as an Alternative to Aluminium Sulphate. In: People and Systems for Water, Sanitation and Health. Papers of the 27th WEDC Conferences, Zambia: , 236-238. URL [Accessed: 21.05.2019]This case study was conducted in Bandung, India. It was investigated to what extent conventional slow sand filters could be improved through backwashing measures and improved aeration processes.
JOSEPHINNE, M. NOTODARMOJO, S. IRSYAD, M. (n.y): Evaluation of single stage dry slow sand filter in removing some physical pollutants from surface water. Case Study of the Cikapundung River. Bandung: Faculty of Civil and Environmental Engineering ITB URL [Accessed: 21.05.2019]OXFAM with its long-standing experience in WASH emergencies outlines within these guidelines a comprehensive overview about assessing water quality, treatment technologies, application, installation strategies for bulk water supply and additionally the operation and monitoring of such facilities during emergency operations.
OXFAM (2001): Oxfam Guidelines for Water Treatment in Emergencies. Oxford: Oxfam GB URL [Accessed: 21.05.2019]This comprehensive and very well-presented guideline provides much information on the selection and treatment of water sources but also discusses the design and costing of the water supply system, the ordering of material and equipment, the organisation of human resources, and the implementation of projects.
HOUSE, S. REED, B. (1997): Emergency Water Sources. Guidelines for Selection and Treatment. Loughborough: Water, Engineering and Development Centre (WEDC) URL [Accessed: 21.05.2019]Contains all necessary information related to water needs, quality, testing, catchment, treatment, storage and distribution in emergencies, as well as health related issues. Well structured, not too long, good illustrations and graphics.
WISNER, B. ; ADAMS, J. (2002): Environmental Health in Emergencies and Disasters. Chapter 7: Water Supply. A Practical Guide. Geneva: World Health Organization (WHO) URL [Accessed: 21.05.2019]