Abstract: The use of unconventional water sources, e.g., reusing treated wastewater and drainage water, could be an important water source for agriculture irrigation in order to overcome the water scarcity in Egypt. In this study, the effect of using submerged biofilters on water quality in the Bilbeas drain as a case study of polluted drains in Egypt is investigated. This study showed that the reuse of treated wastewater and drainage water for irrigation is an attractive option to alleviate water scarcity in Egypt. Furthermore, the case study in the Bilbeas drain showed that using submerged biofilters increased the removal efficiency of the chemical oxygen demand to 40.8% in comparison with natural self-purification, which was 9.8%

• Publication Date: 08-Dec-2019
• DOI: 10.15224/978-1-63248-182-5-10
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Abstract: Lightweight concrete that can be casted using lightweight cement, ultra-light aggregates, hollow sealed spheres made of ceramic and glass, clay bubbles entrapping air, foam material like polystyrene and recycled materials concrete has extreme importance in the construction industry. The weight of the cubes has reduced approximately 22, 26, and 27% using 5, 10, and 15% adding polystyrene foam, respectively. For the 5 % added polystyrene foam, the compressive strengths of the 7, 14, and 28 days increased with 22, 7, and 6%, respectively. While for the 10 % of polystyrene enhanced the compressive strength value of the 28 days with 2.6%. Finally, the compressive strengths of the 15 % of polystyrene cubes were degraded with 29, 28, and 4 %, at 7, 14, and 28 days, respectively. Regarding the flexural tensile strength, the mo

• Publication Date: 08-Dec-2019
• DOI: 10.15224/978-1-63248-182-5-11
• Views: 0
• Downloads: 0