Christian Riuji Lohri

Christian Riuji Lohri
Eawag: Das Wasserforschungs-Institut des ETH-Bereichs | Eawag · Department of Sanitation, Water and Solid Waste for Development

MSc

About

16
Publications
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680
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Introduction
As a research associate at Eawag/Sandec (Sanitation, Water and Solid Waste for Development) from 2012-17, I focused on municipal solid waste management, more specifically on finding practical solutions to valorize the organic waste fraction. I currently dedicate myself to the world of videography and explore i.a. how scientific information can be conveyed in a creative way to a broader audience (www.momokofilm.ch).

Publications

Publications (16)
Article
Full-text available
Treatment of biowaste, the predominant waste fraction in low- and middle-income settings, offers public health, environmental and economic benefits by converting waste into a hygienic product, diverting it from disposal sites, and providing a source of income. This article presents a comprehensive overview of 13 biowaste treatment technologies, gr...
Article
Full-text available
The majority of residents in low- and middle-income countries are served by onsite sanitation. Equitable access to sanitation, including emptying, collection, and transport services for the accumulation of faecal sludge remains a major challenge. Comprehensive information on service coverage by mechanical faecal sludge emptying service providers is...
Article
Hydrothermal Carbonization (HTC) is a thermochemical process that converts wet organic matter into a sterile, high-calorific solid material called hydrochar. This technology is considered an interesting option for low- and middle-income urban settings, often lacking adequate services and high fraction of wet organic waste. The aim of this study was...
Article
Full-text available
Hydrothermal carbonization (HTC) is a thermochemical conversion process with the potential to treat the prevalent wet urban biowaste in low- and middle-income countries. The generated hydrochar solids are a hygienic, homogenized, carbon rich and energy dense product with economic value that can be used as an alternative to wood-based charcoal or fo...
Article
Full-text available
Urban households in low- and middle-income countries (LAMICs) face the challenge of finding affordable, reliable and sustainable cooking fuel supplies. Most city residents use wood-based charcoal derived from mostly informal supply chains, which are linked to unsustainable forest logging, low efficiency production methods and long transportation ro...
Technical Report
Full-text available
As part of a collaborative research project conducted by Eawag/Sandec and Makerere University, 180 faecal sludge samples were collected and analyzed in Kampala, Uganda from November 2013 to April 2014. Presented in this report are quantitative and qualitative results, alongside pictures of 76 samples taken in the laboratory and from the onsite loca...
Article
Full-text available
The poor state of solid waste management in Dar es Salaam (DSM), Tanzania, the large fraction of organic waste generated and a high charcoal consumption by city residents has triggered this research on carbonization of municipal biowaste. Char produced by the thermochemical conversion method of slow pyrolysis can be briquetted and used as cooking f...
Technical Report
Full-text available
Solid waste in the cities of low- and middle-income countries is characterized by a high organic fraction and management of this municipal solid waste is known for low collection and recycling rates, and inadequate disposal methods. Most of these countries also face the major challenge of supplying an affordable, reliable and sustainable cooking fu...
Chapter
Full-text available
Biogas sanitation systems are seen as a promising technology for institutional settings of developing countries as they combine effective treatment of human excreta and kitchen waste, while at the same time generating a renewable fuel source for cooking and a nutrient-rich fertilizer. The Water and Habitat Unit of the International Committee of the...
Book
Full-text available
Anaerobic digestion (AD) reduces the amount of waste and generates products of value, such as biogas and nutrient-rich digestate. Contrary to the wide dissemination of digesters in rural areas where animal manure is used as feedstock and despite its apparent potential, AD still plays a negligible role as a treatment option for organic kitchen and m...
Article
Full-text available
Providing good solid waste management (SWM) services while also ensuring financial sustainability of the system continues to be a major challenge in cities of developing countries. Bahir Dar in northwestern Ethiopia outsourced municipal waste services to a private waste company in 2008. While this institutional change has led to substantial improve...
Article
Full-text available
Digestate was developed from domestic municipal organic waste as an effort to manage waste problems and also provide alternate source of fertilizer for farmers to improve soil fertility. The digestate was composted using three methods namely windrow, co-composting and vermi-composting. The digestates were compared with chicken manure and cow dung i...
Article
Full-text available
This paper describes a method developed to support feasibility assessments of urban anaerobic digestion (AD). The method not only uses technical assessment criteria but takes a broader sustainability perspective and integrates technical-operational, environmental, financial-economic, socio-cultural, institutional, policy and legal criteria into the...
Conference Paper
Full-text available
Dry anaerobic digestion is considered a promising technology for treatment of organic waste in developing countries, mostly due to its simple design which can be constructed and operated at low cost. As real-scale experience is missing, a dry anaerobic pilot digester was developed by Eawag in collaboration with KNUST and ZHAW by converting a second...
Article
Full-text available
In 2007, with the help of the International Committee of the Red Cross (ICRC), biogas sanitation systems were installed in three Nepalese District Jails to improve the poor sanitary conditions, reduce the health risks of the detainees, and provide a smoke-free source of cooking fuel. After one year of operation the functionality of these new system...
Conference Paper
Full-text available
This paper evaluates the suitability of a small-scale biogas system as a decentralised treatment option for the organic fraction of market and household solid waste in Dar es Salaam, Tanzania. A research plant was installed and operated for five months to evaluate its performance when fed with food and market solid waste. The system proved to be ef...

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