Materials, Energy, Water and Environmental Sciences: Recent submissions
Now showing items 161-180 of 641
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Assessment of dairy wastewater treatment and its potential for biogas production at Tanga fresh limited
(Tanzania Journal of Science, 2016-03-16)The extent of pollution of dairy wastewater treated in a septic tank and its potential for biogas production was investigated. Performance of the existing treatment system was assessed through characterization of both raw ... -
Eggshells – assisted hydrolysis of banana pulp for biogas production
(2017-01-27)In this study, pretreatment of banana pulp using eggshells in both calcined and un-calcined forms to examine the extent of hydrolysis was conducted. Reactor CO containing banana pulp and inoculum but with no eggshells added ... -
Distribution of organic carbon: possible causes and impacts in the Pangani River Basin ecosystem, Tanzania
(CSIRO PUBLISHING, 2018-06-08)There is limited information on organic carbon in African rivers, especially from the eastern side. Here, we report distribution and impacts of total suspended matter (TSM), and dissolved and particulate organic carbon ... -
Conceptualizing the Fe0/H2O System: A Call for Collaboration to Mark the 30th Anniversary of the Fe0-Based Permeable Reactive Barrier Technology
(MDPI, 2022-10-03)Science denial relates to rejecting well-established views that are no longer questioned by scientists within a given community. This expression is frequently connected with climate change and evolution. In such cases, ... -
Improving biological treatment of textile wastewater
(IWA Publishing, 2022-01-01)Textile industries are among the primary contributors of water pollution. Treatment of textile wastewater is very important before discharging it to the environment. In the present study, laboratory-scale anaerobic batch ... -
Social knowledge, attitudes, and perceptions on wastewater treatment, technologies, and reuse in Tanzania
(IWA Publishing, 2022-06-01)This study assessed the social knowledge, attitude, and perceptions (KAPs) on wastewater treatment, the technologies involved, and its reuse across different wastewater treatment areas in four regions of Tanzania. We used ... -
Effects of wastewater characteristics on fish quality from integrated wastewater treatment system and fish farming in Urban Areas, Tanzania
(Scientific Research Publishing, 2014-09-10)Availability of suitable water is one of the most important limiting factors for development of sustainable aquaculture in the urban areas. As a consequence, the use of wastewater effluents for aquaculture is on the rise ... -
Mass transfer approach and the designing of horizontal subsurface flow constructed wetland systems treating waste stabilisation pond effluent
(IWA Publishing, 2018-11-29)Pilot-scale constructed wetlands (CWs) that allowed wastewater to flow with high interstitial velocities in a controlled environment were used to evaluate the possibility of using mass transfer approach to design horizontal ... -
Effect of mixing ratios of natural inorganic additives in removing ammonia and sulfide in the liquid phase during anaerobic digestion of slaughterhouse waste
(Elsevier, 2021-06-01)In this study, the efficacy of inorganic additives in the removal of total ammonia nitrogen (TAN) and sulfide in the aqueous phase of slaughterhouse waste undergoing anaerobic digestion in the batch reactor was investigated. ... -
Computational dynamics of solid waste generation and treatment in the presence of population growth
(Asian Journal of Mathematics and Applications, 2014-05-08)Solid waste management is a global challenge and the situation is worse in urban areas of the developing countries where, in most cases, there are no data of how much solid waste is generated over a specific period of ... -
Fe0-Supported Anaerobic Digestion for Organics and Nutrients Removal from Domestic Sewage
(MDPI, 2022-08-15)esults from different research suggest that metallic iron (Fe0) materials enhance anaerobic digestion (AD) systems to remove organics (chemical oxygen demand (COD)), phosphorus and nitrogen from polluted water. However, ... -
Impacts of Emerging Agricultural Practices on Groundwater Quality in Kahe Catchment, Tanzania
(MDPI, 2019)This paper assesses the impacts of farmers’ intensive use of agrochemicals (fertilizers and pesticides) on groundwater quality in the Kahe catchment. Samples were collected during the wet and dry seasons of the year 2018 ... -
The potential for solid waste recycling in Urban Area of Tanzania: The case of Dar Es Salaam
(SciencePG, 2014-09-10)Recycling and reuse of solid waste has a number of benefits in the overall process of solid waste management. First, it reduces the amount of waste that has to be disposed off; be it in landfills or otherwise. In this ... -
Establishing the optimal condition for nutrient recovery from domestic wastewater using the freeze concentration method
(IWA, 2023)The freezing concentration method is one of the potential techniques for recovering nutrients from wastewater. In this study, the method of freeze concentration was studied to establish its optimal conditions in recovering ... -
Application of up-flow anaerobic sludge blanket reactor integrated with constructed wetland for treatment of banana winery effluent
(IWA Publishing, 2017-08-01)Agroprocessing constitutes sizeable industries in the Eastern Africa region discharging wastes into the environment. Proper management of industrial waste is perceived as expensive and enforcement of laws is weak. Generally, ... -
Effects of different supplementary cementitious materials on durability and mechanical properties of cement composite – Comprehensive review
(Elsevier Ltd., 2023)Ordinary Portland cement is the highest produced cement type in the world, however its pro- duction is high energy consumption means expensive, huge natural resource consumptive, and creating high environmental pollution. ... -
Kinetic analysis of anaerobic sequencing batch reactor for the treatment of tannery wastewater
(Academic Journals, 2017-06-30)A pilot scale anaerobic sequencing batch reactor (ASBR) was operated at different organic loading rate (1.03, 1.23, 1.52 and 2.21 kg.m-3.d-1) in order to determine the chemical oxygen demand (COD) removal and methane ... -
Water defluoridation by Fe (III)-loaded sisal fibre: Understanding the influence of the preparation pathways on biosorbents’ defluoridation properties
(Elsevier, 2019-01-15)Defluoridation properties of two Fe(III)-loaded plant biomass (Fe(III)-activated sisal fibre (Fe(III)-ASF) and post-alkalized Fe(III)-ASF (PA-Fe(III)-ASF)) distinguished by preparation pathways through exclusion/inclusion ... -
Performance of water filters towards the removal of selected pollutants in Arusha, Tanzania.
(University of Dar es Salaam, 2016)This paper presents the findings of a study carried out to investigate the efficiency of selected common water filters in the removal of Escherichia coli, organic matter and fluoride. Additionally, the Total Suspended ... -
The need to enforce minimum environmental flow requirements in Tanzania to preserve estuaries: case study of mangrove-fringed Wami River estuary
(Elsevier, 2015-11-01)The importance of restoring and maintaining environmental flows for sustaining the ecosystem integrity of rivers has been recognized in policies and legal frameworks in many countries. However this is routinely not implemented ...
