Indunstningskristallisation av NaCl i närvaro av orenheter som efterliknar saltvattnet i Katwesjön, Uganda Evaporative crystallization of NaCl in the presence of impurities mimicking brines of Lake Katwe, Uganda NaCl is among the most common mineral salts. Not only is it central to our food habits but also it is a base chemical to various industries. Presently, Uganda still depends on imported salts from the neighboring countries to meet its demands despite the existence of a natural saline lake resource in Lake Katwe. This project seeks to develop a crystallization methodology to recover salt from brines such as those found at Lake Katwe. This includes the development of strategies to remove impurities by means of precipitation, re-crystallization, and other techniques, as well as the design of processes applicable to Lake Katwe. The research is based on laboratory experiments run both in Sweden and Uganda using brines from Lake Katwe. Preliminary investigations of the lake deposit within a running project will provide fundamental information regarding the nature and uniqueness of Lake Katwe brines. The present research project aims at developing a thorough expertise in salt crystallization technologies that, on one hand side, will allow for a better understanding of the specific process requirements a salt production plant at Lake Katwe had to fulfill. On the other hand, the collaborative research project will enhance the capacity of higher education through graduate and undergraduate training and through vital exchange. Uganda is well endowed with commercial salt reserves evident in the brines and evaporite deposits of Lake Katwe. The lakes brines contain a very high proportion of salts. It is well known that salt is a basic commodity for all human beings. In Uganda today, over 95 percent of the domestic salt consumption and the related industry are imported from the neighbouring countries despite the existence of this ?white elephant?. The present collaborative research project titled ?Evaporative crystallization of NaCl in the presence of impurities mimicking brines of Lake Katwe, Uganda? is envisaged to undertake a scientific study tailored to extract salt from the lake brines to standards safe for human consumption. The outlined project is to involve researchers from the Royal Institute of Technology (KTH) Stockholm, Sweden and Makerere University Kampala, Uganda. It is perceived that the research outcomes will also provide a framework to contribute to the development of the private sector through making appropriate use of the scientific results. It is also envisaged that this joint research initiative will promote creation of a strong knowledge base in salt crystallization technology through transfer of skills, expertise, knowledge by provision of a wider range of scientific resources hence enabling researchers build strategic scientific research teams aimed at excellence. Uganda har en rik tillgång till kommersiellt användbara saltreserver, tillgängliga i saltlaken och de evaporativa avlagringarna från Katwesjön. Sjöns saltlake innehåller en mycket hög koncentration av salter och det är allmänt känt att tillgång till salt är ett grundläggande behov för människor. I dagens Uganda importeras 95% av saltet som används i hushållen och den del av industriella produktionen som kräver högre kvalitativt salt, detta till trotts den rika tillgången på salt i Katwesjön. Det här forskningsprojektet, kallat ?Evaporative crystallization of NaCl in the presence of impurities mimicking brines of Lake Katwe, Uganda?, syftar till att undersöka möjligheten att utvinna salt ur sjöns saltlake med tillräcklig renhet för mänsklig konsumtion. Projektet som beskrivs häri är tänkt att involvera forskare från Kungliga Tekniska Högskolan (KTH) Stockolm, Sverige och Makerere University Kampala, Uganda. Projektets resultat förväntas även kunna användas för att skapa förutsättningar för att utveckla den privata sektorn genom kunskapsbildning som möjliggör industriell utvinning av saltet i Katwesjön. Dessutom förutses projektet ska skapa en stark kunskapsbas inom saltkristalliseringsteknologi genom kunskaps-, erfarenhets- och färdighetsöverföring då en bredare räckvidd av vetenskapliga resurser tillhandahålls forskarna, vilket gör det möjligt att skapa strategiska forskargrupper för att uppnå excellens.