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Jul 31, 2024Open Access
In this study, gel-immobilized fillers were used to conduct partial nitrification experiments, including a small-scale experiment in the laboratory and a pilot experiment in a leather factory. The performance of the filler for partial nitrification was investigated by the small-scale experiment under the reactor start-up condition with low initial ammonia oxidizing bacteria (AOB) relative abundance. Then pilot experiment was carried out for the application of the filler in leather wastewater tre...
May 31, 2024Open Access
This study aimed to characterize and estimate the pollution potential of wastewater discharged into the Mda River, due to effluents from the city’s municipal slaughterhouse, with the goal of formulating recommendations for appropriate treatment to reduce the serious impact on not only public health and the environment, but also on the city’s socio-economic activities. A systematic inventory was conducted over the period from January to December 2018. Furthermore, physico-chemical analyses show t...
May 10, 2024Open Access
The development of new media has brought a series of challenges to the inher-itance of traditional culture. As an important part of rural revitalization, the inheritance and development of excellent traditional culture is of great significance. Through literature investigation, questionnaire survey and other re-search methods, this topic takes the sericulture culture of Yunlong Village in Haining City as the research object, to understand the development status of local sericulture culture, and ...
Apr 26, 2024Open Access
In reference to the contribution of natural and anthropogenic activities to pollution levels over Kenya, investigation of the changes in aerosol optical properties during COVID-19 lockdowns was assessed. To achieve its objective the present study used aerosol Optical Depth (AOD), Angstrom exponent (AE) and Single Scattering Albedo (SSA) from Ozone Monitoring Instrument (OMI) and Moderate-resolution Imaging Spectroradiometer (MODIS) satellite sensors, to analyze the variations in aerosol properti...
Feb 29, 2024Open Access
The Ethiopian economy, largely reliant on the pastoralist system, is significantly impacted by its use in semi-arid regions, ensuring livelihoods and export markets. The study aims to assess the strengths, weaknesses, and overall impact of these initiatives on pastoral communities. Moreover, it explores the resilience factors exhibited by these communities, identifying cultural practices, adaptive strategies, and community-driven approaches contributing to their ability to withstand challenges. ...
Oct 26, 2023Open Access
Vermifilter, based on earthworm-microorganism synergistic action, could simultaneously achieve the reduction and stabilization of excess sludge environment-friendly. To make vermifilter work more efficiently and steadily, the diameter of ceramsite, filter height, and influent concentration were investigated in this study. The results showed that though larger ceramicite may decrease the rate of suspended solids (SS) reduction and volatile suspended solids (VSS) reduction slightly, it can improve...
Sep 27, 2023Open Access
Protected areas (PAs) are managed for sustainable conservation of natural resources. While local adjacent communities are dependent on natural resources, there is limited access to the resources in PAs. Hence, debate on the role of PAs in improving local community’s livelihoods often gives rise to conflicts. Solutions to this debate have been hampered by lack of information on the actual community concerns. To address the challenges, focus group discussions (FGDs) were done to identify local com...
Sep 25, 2023Open Access
EDTA synthesized activated carbon derived from sawdust, was utilized as adsorbent for the removal of Pb(II), Cd(II) and Zn(II) ions from aqueous solutions. The adsorptive characteristics and elemental composition of this activated carbon were studied using SEM and EDX techniques respectively, the analysis revealed that SAC-EDTA contained 71.95% by weight of carbon contents which are requisites for the high adsorption capacity. The effect of initial metals ions concentration, adsorbent dose, cont...
May 25, 2023Open Access
Management of wildlife species has recently become a global concern as most are threatened to near extinction or endangered. The establishment of national parks such as the Sapo National Park (SNP) in the 1980s as a conservation area has been found as one of many solutions for protection of wildlife species in Liberia. Nonetheless, due to various natural and anthropogenic drivers and pressures, the SNP is under consistent threat of losing its biodiversity integrity. Various factors including wea...
Apr 28, 2023Open Access
Diclofenac (DCF) is a non-steroidal anti-inflammatory drug (NSAID) used to relieve pain in joint-related diseases. It is not completely metabolized after consumption and cannot be easily removed using conventional wastewater treatment. DCF has been detected in water bodies and may pose chronic effects on the endocrines of living organisms even at low-level exposure. Heterogeneous photocatalysis provides an alternative and efficient method of degrading DCF. In this study, the photocatalytic remov...
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