Community (BETA)

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Recent Community Submissions

TOWARDS SETTING UP E-waste recycling factories in india

We would like to set up and demonstrate an e-waste recycling factory in India modeled on the SteP project of United Nations Environment Programme (UNEP). Once proven in India, recycling entrepreneurs will be invited to copy from the model to set up recycling factories of their own. One of the founders of this Project, a senior Chemical Engineering Consultant with over 30 years experience in setting up and running chemical...

Building a bridge

The bridge linking my community to the outside world collapsed since 2014 and everybody including older women and pregnant ones were cut off from getting medical attentions, and all. I am organizing to reconstruct the bridge. Please experts, what is the cost implication of constructing a bridge with H-Beam Pillars and other types of bridge. : St.kingsley uzoaru: saintkingsley@gmail.comI want feedback from the community on my contribution: Stranded-people-are-struggling-to-cross-to-Ndi-Ebe-Abam.-1 : I...

Design support for charcoal extrusion process

The social enterprise Appropriate Energy Saving Technologies Limited makes and sells charcoal briquettes from recycled agricultural waste in Uganda. Our biggest problem at the moment is that the shaft in the charcoal extruder wears out a lot. We have tried  case hardening and are now considering to buy another extruder that can make 1 ton of briquettes per hour or fabricate one with a better, stronger material. We are seeking advice...

Hydrokinetic river turbines for hydropower

Community contribution by Juliana Baumgartl We are a German small engineering team working on bringing sustainable access to energy to communities living in remote areas in developing countries. The company is pro-profit and our main product is a hydrokinetic river turbine. Editor’s note: Juliana Baumgartl supplied the following information to her post by email. Learn more about this product at Animation explaining the solutions: Peruvian project, electricity for households...

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Biosolids drying system

Community contribution by Marilyn Franklin We have innovated a more affordable modular model of a biosolids drying system which transforms biosolids from a wastewater treatment plant into reusable resources–Class A biosolids. Our goal is to build awareness that there is now a system that is less expensive lifecycle cost than the treatment plant pays to haul biosolids to and dispose in a landfills. The image pictured is the SludgeBox.

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Concrete lathe and Multimachine project

Community contribution by Pat Delany Some of you may be familiar with my Concrete Lathe and Multimachine projects. I have merged them into a simple, $200 machine tool that can turn, thread and index. It can also  mill, drill, saw and grind in multiple ways. It can be built by a carpenter or mechanic using concrete and scrap steel and is easily aligned. I know this all sounds far-fetched but I have...

Solar Thermal Powered Feces Heat Exchanger for Waste Treatment

More people in Africa have access to a cell phone than toilet. We’re changing that and over the next five years we are planning to serve 1 million people with safe and efficient sanitation services. Simply, we install modern container-based toilets in the homes of the urban poor for free and charge a small monthly fee to service them. We have an innovative method of waste treatment that we explain in the attached...

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