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8938 search results found
Development of Synthetic Terra Preta (STP): Characterisation and Initial Research Findings

Poster presentation on initial research findings on the development of synthetic terra preta that could be as effective in promoting plant growth and in sequestering carbon as terra preta.

CHIA, C. H. ; JOSEPH, S. D. ; MUNROE, P. ; LIN, Y. ; HOOK, J. ; SHASHA, A. ; ZWIETEN, L. van ; KIMBER, S. ; COWIE, A. ; SINGH, B. ; LEHMANN, J. ; HANLEY, K. ; BLACKWELL, P. ; CARTER, E. ; MANNING, D. A. C. ; FIALIPS, C. I. A. (2009): Development of Synthetic Terra Preta (STP): Characterisation and Initial Research Findings. In: Proceedings of the Asia Pacific Biochar Conference 2009, Gold Coast Australia 17 to 20 May, 2009. Australian and New Zealand Biochar Researchers Network: URL [Accessed: 05.06.2019]
Biogas: GP Option for Community Development

This document contains a short review on biogas technology and an overview on the green productivity concept and community development. It also contains a detailed construction manual for fixed-dome biogas plant at the household level for the digestion of animal dung. An operation manual is also given and wide information on biogas appliances, such as cooking stoves and reuse of remaining compost from the digesters.

KOOTTATEP, S. OMPONT, M. HWA, T.J. (2004): Biogas: GP Option for Community Development. Asian Productivity Organization (APO) URL [Accessed: 05.06.2019]
Overview of anaerobic treatment options for sustainable sanitation systems

PDF presentation about condominium-level biogas digesters for the transformation of human faeces. Biogas basics as well as two case studies (from Germany and India) are presented.

MUENCH, E. (2008): Overview of anaerobic treatment options for sustainable sanitation systems. In: BGR Symposium "Coupling Sustainable Sanitation and Groundwater Protection": URL [Accessed: 05.06.2019]
Bio-char sequestration in terrestrial ecosystems– a review

Detail calculations of the potential of carbon sequestration by the production of bio-char (charcoal or biomass-derived black carbon) and its application to soil is proposed to establish a sink for atmospheric carbon dioxide are given and discussed.

LEHMANN, J. ; GAUNT, J. ; RONDON, M. (2006): Bio-char sequestration in terrestrial ecosystems– a review. In: Mitigation and Adaptation Strategies for Global Change : Volume 11 , 395-419. URL [Accessed: 05.06.2019]
Anaerobic treatment of municipal wastewater treatment

Technical information on the advantages and main technologies of anaerobic digestion treatment for wastewaters in developing countries.

NATURGERECHTE TECHNOLOGIEN ; Bau- und Wirtschaftsberatung (TBW) GmbH (2001): Anaerobic treatment of municipal wastewater treatment. (= Technical Information W3e ). German Agency for Technical Cooperation GmbH (GTZ) and German Appropriate Technology Exchange (GATE) URL [Accessed: 05.06.2019]
Co-composting of Faecal Sludge and Municipal Organic Waste

The document gives an overview on the combined composting of (faecal) sludges and organic solid waste based on a pilot project in Kumasi, Ghana. Results of the investigation should help the city’s waste management department to develop its biosolids management strategy and enable the project team to develop guidelines for planners and engineers on the option of co-composting.

STRAUSS, M. DRESCHER, S. ZURBRUEGG, C. MONTANGERO, A. OLUFUNKE, C. DRECHSEL, P. (2003): Co-composting of Faecal Sludge and Municipal Organic Waste. Swiss Federal Institute of Aquatic Science (EAWAG), Department of Water and Sanitation in Developing Countries (SANDEC) and International Water Management Institute (IWMI) URL [Accessed: 05.06.2019]
Improved Biogas Unit for Developing Countries

This booklet reflects seven years of experience of the Biogas Extension Service (BES) of CAMARTEC (Centre for Agricultural Mechanization and Rural Technology) in Arusha/Tanzania, which was carried out in cooperation with the GTZ from 1983 to 1986. It is meant as a teaching aid in agricultural colleges and as a reference book for professionals working in the field of rural biogas extension.

SASSE, L. (1991): Improved Biogas Unit for Developing Countries. German Appropriate Technology Exchange (GATE) and German Agency for Technical Cooperation (GTZ) GmbH URL [Accessed: 05.06.2019]
Bio-Char Soil Management on Highly Weathered Soils in the Humid Tropics

This chapter discusses the potential of slash-and-char agriculture as an alternative to slash-and-burn and the effects on microbial cycling of nutrients nitrogen fixation in the soils. Focus is held on highly weathered soils in the humid tropics.

LEHMANN, J. RONDON, M. (2006): Bio-Char Soil Management on Highly Weathered Soils in the Humid Tropics. In: UPHIFF, N. ; BALLl, A. ; FERNANDES, E. ; HERREN, H. ; HUSSON, O. ; LAING, M. ; PALM, C. ; PRETTY, J. ; SANCHEZ, P. ; SANGINGA, N. ; THIES, J. (2006): Biological Approaches to Sustainable Soil Systems. 517-530. URL [Accessed: 05.06.2019]
Composting and Its Applicability in Developing Countries

This informal paper argues that composting should be a more widespread practice, especially in developing countries. It reviews past composting experiences and provides an outline for municipal managers to use when evaluating composting programs within an integrated municipal waste management system.

HOORNWEG, D. THOMAS, L. OTTEN, L. (2000): Composting and Its Applicability in Developing Countries. (= Urban Waste Management Working Paper Series , 8 ). Washington, D.C.: The World Bank URL [Accessed: 05.06.2019]
A handful of carbon – commentary

An article on the potential of carbon sequestration by integrating charcoal (bio-char) into the soils.

LEHMANN, J. (2007): A handful of carbon – commentary. In: Nature: Volume 447 , 143-144. URL [Accessed: 05.06.2019]
Anammox – A Novel Microbial Process for Ammonium Removal

This article gives an overview of the Anammox process and how it was discovered.

SHIVARAMAN, N. ; SHIVARAMAN, G. (2003): Anammox – A Novel Microbial Process for Ammonium Removal. In: Current Science: Volume 84 , 1507-1508. URL [Accessed: 03.06.2019]
Nutrient Control Design Manual

The purpose of this manual is to provide updated, state‐of‐the‐technology design guidance on nitrogen and phosphorus control at municipal Wastewater Treatment Plants (WWTPs). This manual contains extensive information on the principles of biological nutrient removal and chemical phosphorus removal to serve as the basis for design. A detailed description of technologies, both conventional and emerging, serves as a resource for preliminary technology selection.

U.S. EPA (2010): Nutrient Control Design Manual. Washington, DC: United States Environmental Protection Agency URL [Accessed: 03.06.2019]
Trickling Filters

Short Factsheet on the applicability and design criteria of trickling filters including a lot of information on operation and maintenance (form the United States Environment Protection Agency (EPA).

U.S. EPA (2000): Trickling Filters. (= Wastewater Technology Fact Sheet, EPA 832-F , 14 ). United States Environment Protection Agency URL [Accessed: 03.06.2019]
The Discovery of the Anammox Process and Beyond

The Anammox reaction was discovered and validated to be mediated by microbes in the early nineties. In 1999, the responsible bacteria were positively identified. These slowly growing microorganisms belong to the order Brocadiales and are affiliated to the Planctomycetes. Cultivation of these bacteria at sufficient biomass density and rate, as well as the lack of pure cultures, has challenged the study of these extraordinary organisms. Membrane reactors have made the cultivation of up to 95% enriched cell suspensions of Anammox bacteria possible.

KUENEN, J.G. KARTAL, B. JETTEN, M.S.M. (n.y): The Discovery of the Anammox Process and Beyond. Pasadena: The Agouron Institute URL [Accessed: 03.06.2019]
Anaerobic Methods of Waste Treatment

This technical factsheet describes the treatment of wastes through anaerobic digestion and biogas production at large-scale in a very comprehensive way. The treatment of different wastes, including sewage sludge, agricultural and industrial wastes or solid municipal wastes, is emphasised.

GATE (2000): Anaerobic Methods of Waste Treatment. Technical Information W2e. Frankfurt (Germany): German Agency for Technical Cooperation GmbH (GTZ) and German Appropriate Technology Exchange (GATE) URL [Accessed: 03.06.2019]
Integrated Water & Wastewater Treatment Solutions

This brochure gives you an overview about several wastewater treatment solutions.

AQWISE (2010): Integrated Water & Wastewater Treatment Solutions. Herzliya: Aqwise - Wise Water Technologies Ltd URL [Accessed: 03.06.2019]
Exceeding Tertiary Standards with a Pond/Reed Bed System in Norway

Case study about a combined pond / constructed wetland system in cold climate for 160 peoples, a dairy and food processing workshop, a bakery and a laundry. A vertical flow constructed wetlands was installed for pre-treatment, followed by a deep enhanced facultative pond, three aerated stabilization ponds, a planted sand filter and finally tow horizontal-flow constructed wetlands.

BROWNE, P.D. ; JENSSEN, P.D. (2005): Exceeding Tertiary Standards with a Pond/Reed Bed System in Norway. In: Journal of Water Science and Technology: Volume 51 , 299-306. URL [Accessed: 03.06.2019]