Research Articles [MEWES]: Recent submissions
Now showing items 121-140 of 503
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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 ... -
Wastewater treatment performance efficiency of constructed wetlands in African countries: a review
(IWA Publishing, 2015-01-01)In Africa, different studies have been conducted at different scales to evaluate wastewater treatment efficiency of constructed wetland. This paper aims to review the treatment performance efficiency of constructed wetland ... -
Environmental Contamination By Radionuclides And Heavy Metals Through The Application Of Phosphate RocksDuring Farming And Mathematical Modeling Of Their Impacts To The Ecosystem
(nternational Journal of Engineering Research and General Science, 2014-07)Most of rock phosphates contain radioactive elements and heavy metals because theyoriginate from phosphate deposits. The application of these rock phosphates may result to the transfer of these dangerous materials into ... -
Where does land use matter most? Contrasting land use effects on river quality at different spatial scales
(Elsevier, 2020-05-01)Understanding the influence of land-use activities on river quality has been a key focus of river monitoring programs worldwide. However, defining which land-use spatial scale is relevant remains elusive. In this study, ... -
Making Fe0-Based Filters a Universal Solution for Safe Drinking Water Provision
(MDPI, 2017-07-12)Metallic iron (Fe0)-based filtration systems have the potential to significantly contribute to the achievement of the United Nations (UN) Sustainable Development Goals (SDGs) of substantially improving the human condition ... -
Metallic iron for safe drinking water provision: Considering a lost knowledge
(Pergamon, 2017-06-15)Around year 1890, the technology of using metallic iron (Fe0) for safe drinking water provision was already established in Europe. The science and technology to manufacture suitable Fe0 materials were known and further ... -
Preparation of activated carbon with disered properties through optimization of impregnating agent
(Rjeas, 2014)In this study, activated carbon with desired properties was prepared from peanut shell and sugarcane bagasse using chemical activation method in which potassium hydroxide (KOH) was used as a impregnating agent. The ... -
A review on strategies to optimize metabolic stages of anaerobic digestion of municipal solid wastes towards enhanced resources recovery
(BMC, 2019)Recently, there are increased efforts by municipals and researchers to investigate the potential of utilizing municipal solid wastes (MSW) for resources recovery. In many parts of developing countries, MSW is mostly collected ... -
Experimental Investigation of Soapstone and Granite Rocks as Energy-Storage Materials for Concentrated Solar Power Generation and Solar Drying Technology
(ACS Omega, 2023)The intermittence of solar energy resource in concentrated solar power (CSP) generation and solar drying applications can be mitigated by employing thermal energy storage materials. Natural rocks are well recommended thermal ...
