The data presented herein are results of the research summary of the investigation for pozzolanic activity in coconut shell ash (CSA) towards a sustainable construction. The data article provides information on the properties of Coconut Shell Ash that are indicative of pozzolanic activity as stated in ASTM C618-15 (2015) [1], BS EN 197-1 (2011) [2] and Joshua et al. (2018) [3]. The data are the physical property of the sand used in determining the binder strengths and the chemical and physical properties (oxide composition and Strength Activity Indices respectively) of the pulverized, calcined and sieved Coconut Shell Ash.
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http://dx.doi.org/10.1016/j.dib.2018.03.125 | DOI Listing |
Environ Res
January 2025
College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China. Electronic address:
Although various biochars from different biomass materials have been developed to remediate dye-contaminated environments, the removal capabilities of pristine biochar for dyes urgently require further enhancement due to insufficient surface adsorption sites. To introduce more adsorption sites, this work proposes a simple approach to fabricate coconut shell biochar (CSB) based adsorbent by anchoring zeolitic imidazolate framework-8 (ZIF-8) via the active sites provided by polydopamine (PDA)-coated CSB. The nucleation sites provided by the PDA layer promote the dispersion of ZIF-8 on the surface of CSB, resulting in sufficient adsorption sites for removing malachite green (MG) and rhodamine B (RB) from wastewater.
View Article and Find Full Text PDFHeliyon
December 2024
Department of Chemistry, University of Fort Hare, Alice, 5700, Eastern Cape, X1314, South Africa.
The use of environmentally friendly materials for industrial applications has increased tremendously in the past decades due to environmental concerns associated with using synthetic materials. The present comparative investigation studied the properties of raw and chemically-treated coconut shell biomass for possible polymeric composite applications. The coconut shell biomass was treated with alkali (NaOH), bleaching and combined NaOH-bleaching solutions and investigated the surface morphology, chemical transformations, and thermal stability.
View Article and Find Full Text PDFJ Occup Environ Hyg
December 2024
Health Effects Laboratory Division, Chemical and Biological Monitoring Branch, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Cincinnati, Ohio.
A significant portion of the work of developing and validating methods for volatile organic compound (VOC) sampling in workplace atmospheres involves the use of laboratory-generated atmospheres. The sample variability was evaluated from the dynamic atmosphere generation system used for VOC atmosphere generation and sampling. Characterization of the bias and variability of samples was done for a variety of atmospheres containing neat n-heptane and mixtures of VOCs sampled on activated coconut shell charcoal.
View Article and Find Full Text PDFHuan Jing Ke Xue
December 2024
Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Northwest A&F University, Yangling 712100, China.
J Environ Manage
January 2025
Guangxi Key Laboratory of Environmental Processes and Remediation in Ecologically Fragile Regions, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China; Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, 15 Yucai Road, Guilin 541004, PR China. Electronic address:
The effects of coconut shell biochar and coke on anaerobic digestion of river snail rice noodle wastewater treatment were assessed, and the microbial community, and methane metabolic pathways were investigated. When the hydraulic retention time was 24 h, the average chemical oxygen demand (COD) removal rates in the reactors with coconut shell biochar and coke were 94.02% and 88.
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