The Construction of Biogas Digesters takes shape in Kgatleng District

Aug 21, 2018

The delegation engaged the contructors to fully appreciate the progress or challenges of the project

UNDP Resident Representative Ms. Jacinta Barrins together with Botswana Institute for Technology Research and Innovation (BITRI) CEO Prof. Shedden Masupe, Executive Director Technologies Dr. Sebusang Sebusang, Head of Energy Division, Dr. Edward Rakgati, Biogas Project Manager Mr Baboloki Autlwetse and project engineer Ms  Ludo Moroka visited two of the biogas project demonstration sites in Malotwane and Ditlhokwe, both in Kgatleng District.
The purpose of the visit was to get an appreciation of the biogas digester construction being undertaken by the project team in collaboration with Kgatleng Brigade Centre (Technical College).
The Project Engineer, Ms Ludo Moroka explained to the delegation, the process of training the bricklayers in constructing the dome. She explained how they undergo theory training to get an understanding of biogas concepts together with basics of digester construction. The training is then followed by practical training where a digester is built by the bricklayers and brigade lecturers, Mr Benjamin Mothulwa and Mr Khonie Mantsima. Plastering  
The delegation was able to see construction at different levels; at Malotwana site, the construction was at foundation stage awaiting building of the spherical wall. At Ditlhokwe the digester dome was almost complete, with the excavation of the expansion chamber underway. Keletso Maribe, one of the bricklayers explained what he has learnt and continues to learn through the training. He highlighted the benefit of the digester to farmers who would not have to go out searching for firewood for cooking. He went on to say the skill he is acquiring will help him financially as he builds digesters for other farmers.
The biogas project aims to promote the production and utilisation of biogas from South Eastern part Botswana. The partners (UNDP and BITRI) have set a target of constructing thirty (30) demonstration sites as a pilot of the technology.
The Biogas Project involves the use of cow dung mixed with water which is then allowed to ferment in the dome until it produces energy which could be used for cooking and electricity among other things. This is an environmentally friendly way of producing energy (power). The process ultimately produces organic fertisers which could also be used to fertilise gardens.

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