Netherlands Development Organisation (SNV Biogaz domestique en Asie, Afrique, Amérique latine SNV’s support for national programmes on domestic biogas spreads across three continents: Asia, Africa and Latin America. In our multi-stakeholder sector development approach, we aim to optimise organisational and institutional capacities already available in the country. SNV started supporting biogas activities in Nepal in 1989 and in Vietnam in 2003. Since 2006, domestic biogas programmes have also been established in Bangladesh and Cambodia, while a pilot programme in Lao PDR took off in 2007. Pakistan and Indonesia launched biogas programmes in 2009; Bhutan in 2011. By the end of 2012, 500,000 households (2.9 million people) have been equipped with biogas plants. SNV’s biogas activities have been expanded to include Africa. The experiences and lessons learned from Asia and Africa are underway to Latin America. Learn more about domestic biogas
Composting greenhouse provides hot water (original) The original content of this page, "Composting greenhouse provides hot water (original)", was authored by Ole Ersson, and was written from his point of view. It was ported with permission from Experiments in Sustainable Urban Living. Bales Our household of 2 adults and three children obtained all our household hot water from a composting greenhouse we constructed in Portland, Oregon in 1994. The strawbale floor The greenhouse design was similar to inexpensive "tube" greenhouses. Pipe supports for the roof Two PVC 3/4 inch water lines ran underground from the house to the greenhouse. Plans in the greenhouse The total amount of hot water contained in the hose inside the compost (comprising a cylinder 100 feet long by 1.5 inch diameter) was 9.17 gallons. Roof over greenhouse The compost biomass consisted of wood chips and other ground tree material run through a chipping machine.
Using biogas technology, farmers in Eritrea help reduce greenhouse gas emissions Roots and tubers are extremely important crops in rural Ghana. They are a source of both food and income. In the northern regions, the yam harvest marks the end of the lean period while families wait for their main staples, sorghum and millet, to ripen. All three categories of roots and tubers are the staple foods of urban dwellers, especially urban poor people. One of the innovative features of the first phase of the Root and Tuber Improvement Programme, which was completed in 2005, was to focus on crops traditionally associated with poverty. About 720,000 farmers were able to access the new varieties and many participated in the 17 farmer field schools that the programme set up across the country. The new phase, entitled the Root and Tuber Improvement and Marketing Programme, is now focusing on improving market linkages between producers and consumers to boost poor rural farmers’ incomes.
Rocket stove A small manufactured rocket cooking stove A rocket stove A rocket stove is an efficient cooking stove using small diameter wood fuel which is burned in a simple high-temperature combustion chamber containing a vertical chimney and a secondary air supply which ensures almost complete combustion prior to the flames reaching the cooking surface. The principles were described by Dr. Design A rocket stove achieves efficient combustion of the fuel at a high temperature by ensuring a good air draft into the fire, controlled use of fuel, complete combustion of volatiles, and efficient use of the resultant heat. A rocket stove's main components are: The fuel magazine can be horizontal, with additional fuel added manually, or vertical, with fuel automatically fed. For cooking purposes, the design keeps the cooking vessel in contact with the fire over the largest possible surface area. Recent Adaptations There have been a number of new cook stove designs based on the original rocket stove.
Relâcher ou brûler le méthane? Eco-Living: How to Make a "Cool" Solar Oven from Scrap For those of you into "eco" projects, here's a good one. This little baby works on the same principle as the solar tower, but on a much smaller scale. I was in Colorado a few summers ago. I had some spare time, and wanted to make something nice as a gift for my friends who frequently camp out in the countryside. There are a million variations on the solar oven, but I wanted to go simple. Basically this is a box with a clear cover that has a lot of light shining into it. Here's how I made it. * Wood: I went out and bought some plywood, marked it off and cut it down with a jigsaw to make the rudimentary sides of your typical six-sided rectangular box. * Hinges: See IMAGE 2. * Tin Foil & Glue: Next I got some glue and covered the flipper tops with a thin coating of glue, over which I stretched sheets of tin foil (aluminum foil is OK, too) with the shiny side facing outward. * String and Eye-Hooks: Look at the pictures and you will see some string floating around here and there. Have fun!
Procédé technique - France Biogaz Les matières organiques sont réceptionnées et pesées à l'entrée du site de méthanisation. Selon leur nature et leur consistance, les matières organiques sont prétraitées avant d'être envoyées vers les digesteurs. Elles sont broyées, hygiénisées (70°C, 60 min, 1 bar) si ce sont des matières de catégorie sanitaire 3, stérilisées si ce sont des matières organiques de catégorie 2 (133°C, 20 min, 3 bars). Pour éviter les émissions odorantes à l'extérieur du site, ces opérations se font à l'intérieur d'un hall de réception, mis en dépression, avec traitement des émissions par un système biologique (biofiltre) représenté ci-dessous. Les matières organiques, prétraitées ou non (selon la matière), sont ensuite envoyées vers les digesteurs : le digesteur principal et le post-digesteur. Ce sont dans ces cuves qu'a lieu la réaction de méthanisation : les micro-organismes dégradent les matières organiques pour produire le biogaz et le digestat.
India wins the Ashden Prize for making charcoal without wood. The Ashden Award is the greatest prize that exists for innovative work concerning the environment in the Third World. Dr. A D Karve on behalf of ARTI, Pune walked up recently to receive the prestigious Rs.20 lakhs award at a ceremony in the UK. The judges declared themselves as 'excited' about his work - an integrated fuel-from-waste system that can create thousands of rural entrepreneurs all over the world, while saving trees and reducing petro dependance. Priya plays with cane leaves: Actually the adventure began with Anand Karve's adoring daughter, Priyadarshini in 1996. Priya tried shredding and briquetting leaves in general in order to create fuel pellets. Priya's academic pursuits distracted her for a while and there the matter stood until she finished her doctoral thesis in physics. Char it! Back to our story now. But the gritty cane leaf stood defiant. The breakthrough came when they thought of packing the leaves tightly in a retort [which is really a can with a lid]. April 2002
Méthanisation Biogaz - ASDER 1. Installations en Savoie Les installations de méthanisation agricoles, très nombreuses en Allemagne, en Autriche et en Suisse, commencent à se démultiplier en France.En Savoie, nous comptons en 2011 , quatre installations en fonctionnement ou en cours de construction : Tamié : L’abbaye de Tamié : méthanisation du lactosérum de la fromagerie et valorisation uniquement en production de chaleur. Utilisation de la chaleur pour la production d’eau chaude sanitaire et les besoins de la fromagerie. Entremont le vieux : la fromagerie : méthanisation du lactosérum de la fromagerie et valorisation uniquement en production de chaleur. Essert-Blay : l’EARL Mercier : Voir www.biogazrhonealpes.org . Albertville : unité de méthanisation pour l’union des producteurs de Beaufort : en projet : méthanisation de lactoserum avec cogénération. Chiffres clés :Intrants : 2 400 tonnesPuissance cogénération : 45 kWéProduction électrique : 370 MWhProduction thermique : 400 MWh 2. Cette réaction produit:
How to Build a Rocket Stove Living Published on September 26th, 2011 | by Jeff McIntire-Strasburg UPDATE: Added another plan to the list… this one made from tin cans. Just back from a weekend trip up to the Dancing Rabbit Ecovillage, and between board meetings, was able to join in with the community’s annual open house and Village Fair. I’m really intrigued by this beautifully simple concept, created by Dr. Looking for an alternative to the traditional outdoor barbecue grill, or even for heating your home (at least partially). 1. This one requires no more than stacking some bricks… though I’m guessing they would need to be made of a material like adobe (for the insulative properties). 2. You’ll need just a few more materials for this one from the Aprovecho Research Center, but it’s still pretty simple… 3. If you’re interested in something closer to the look of a conventional barbecue grill, this plan by the folks at Root Simple may be just the ticket. 4. 5. #6 The tin can rocket stove (10/1/11) And a bonus…