Suchergebnisse

Solid Waste Management and Sustainability: Introduction and Updates -- Sustainable Management of Organic Wastes -- Emerging Techniques of Solid Waste Management for Sustainable and Safe Living Environment -- Sustainable management of food wastes through cavitation-assisted conversion into value-added products -- Characterization of Biomass and Studies of Pyrolysis on Rice Husk in a LabScale Pyrolyser: A step towards Environmental and Energy Sustainability -- Thermoluminescence Properties of Combustion-Synthesized Nanomaterial and Its Applications for Achievable Sustainable Development Goals (SDGs) -- Rapid bioconversion of animal meat waste into compost using black soldier fly larvae (Hermetia illucens): A more sustainable approach -- Transforming Solid Waste into Artistic Marvels for Environmental Sustainability: Ghanaian Artists' Upcycling and Creative Reuse of Plastic Waste -- Challenges of Environmental Health in Waste Management for Peri Urban Areas -- Solid Waste Management and Sustainability: Recommendations and Conclusions.

Overview, Objectives, Principles, and State-of-the-Art of Engineered-Based Wastewater Treatment Technologies -- Simplified Engineered-Based Wastewater Treatment Technologies: Energy, Climate Change, and Land-Use Aspects -- Biotechnology for Green Future of Wastewater Treatment -- Environmental Impact Assessment of Wastewater Reuse -- Cavitation Based Processes for Water and Wastewater Treatment -- Wastewater Treatment Using Biochar Technology -- Adsorption: A Cost-effective Wastewater Treatment Technology for Removal of Conventional and Emerging Organic Contaminants -- Nanotechnology-enabled Multifunctional Material for Removal of Toxicants from Wastewater -- Advanced Configurations for Efficient Membrane Bioreactors: Energy Saving Approaches -- Wastewater Treatment by Trickling Filter Technology as Low Energy Consumption Solution (Case Studies –Worldwide) -- Membrane Bioreactor for Wastewater Treatment: Current Status, Novel Configurations and Cost Analysis -- Activated Sludge Fungal Community in Wastewater Treatment Plants -- Anaerobic Treatment Systems: A Sustainable and Clean Environment with Future Hope of Renewable Energy -- Co-digestion of Fruit and Vegetable Wastes: An Opportunity to Enhance the Circular Economy of Anaerobic Digesters -- Trihalomethanes (THMs) in Wastewater: Causes and Concerns -- Degradation of Selected Xenobiotics from Wastewater by Wood-Decay Fungi -- Prospects and Potential Role of Biological Treatment of Textile Effluent to Restore Water Reservoir -- SnO2-Mixed Oxide Electrodes for Water Treatment: Role of Low Cost Active Anode -- Emerging Organic Compounds (EOCs) Removal from Water and Wastewater Using Innovative Technologies and Materials -- Intermittent Cycle Extended Aeration System (ICEAS) and its Application In Wastewater Treatment -- Sustainable and Green Management of Wastewater Under Climate Change Conditions -- Microbial Biosurfactants and their Implication Towards Wastewater Management -- Best Practice Management of Wastewater in Poland -- Emerging Technologies of Sludge Management (Drying, Incineraon, Pyrolysis, Torrefacon) -- Towards The Global Rise of Zero Liquid Discharge for Wastewater Management: The Mining Industry Case in Chile.

PurposeThe purpose of this paper is to investigate the effect of corporate governance (CG) mechanisms (board size, board independence, separation of chairman and chief executive officer (CEO) roles and external auditor type) on accounting conservatism in Egypt.Design/methodology/approachArchival data relating to CG and accounting conservatism are collected and analysed using multivariate regression techniques.FindingsThe findings indicate that board independence is positively associated with accounting conservatism. By contrast, board size and auditor type are negatively associated with accounting conservatism, while separating the chairperson and CEO roles has no significant relationship with accounting conservatism.Originality/valueTo the best of the author's knowledge, this is one of the first empirical attempts at providing evidence on the relationship between CG and accounting conservatism in Egypt.

AbstractA cationic adsorbent, namely polyamine/folic acid composite (PFC) was used to remove Cr(VI) from aqueous solutions. The optimum pH was 2.0, achieving Cr(VI) removal of 99.4% at an initial concentration 200 mg/L, PFC dosage 0.5 g/L and temperature 298 K within 90 min. Under the acidic condition, electrostatic attractions between anionic species of chromium (

and

) and cations on PFC (NR4+ and H+) enhanced Cr(VI) uptake. Additional removal mechanisms including anion exchange with Cl− (because of the use of epichlorohydrin for PFC preparation), reduction of Cr(VI) to Cr(III) and physical interaction could be involved in the adsorption process. Artificial neural network containing a first layer with five inputs, a hidden layer with eight neurons and the last layer with one output was able to predict the Cr(VI) removal efficiency (R2 = 0.919). The total cost of scaling up the adsorption system was $3.53 per m3 of wastewater containing 200 mg‐Cr(VI)/L.