April 2017
Identification and classification of clayshale characteristic and some considerations for slope stability
It is very necessary for clay shale layer to slake for durability. The identification and classification of clayshale should be considered based on slope design. Several locations of clayshale slopes were stable during the construction of Cipularang Highway 97 + 000 km, West Java, Indonesia. However, they experience landslides after some time. Therefore, material properties and shear strength characteristics of...
April 2017
Enhancing benefits from biomass wastes within small-medium scale coffee processing factories in Kiambu County, Kenya
Coffee processing is associated with various sustainability challenges largely due to high water and energy demand, biomass waste generation and lately low returns to farmers. The number of farmers actively involved in coffee production in Kenya is declining. Despite this trend, this paper reports on the potential of maximising benefits to coffee farmers by using coffee processing wastes (pulp and husks) in energy and...
April 2017
The effect of Amaranthus hybridus on fluoride removal by iron (III) salts as fluoride coagulants
The use of iron (Fe) (III) salts as fluoride coagulants in water is challenged by the requirement of high pH for maximum efficiency. At their natural pH, these salts have low fluoride removal efficiency. This study examines the effect of amaranth plants on enhancement of the defluoridation efficiency of Fe (III) salts as coagulants. Amaranthus hybridus plants were suspended in fluoride water treated with varying...
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