铁改性甘蔗渣花生壳粉去除合成污水中Cr6+的研究

Journal of Chemistry and Environment Pub Date : 2023-07-06 DOI:10.56946/jce.v2i2.146

Syeda Hijab Zehra, Said Akbar Khan, Syeda Mahnoor Zehra, M. Asad

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引用次数: 0

摘要

未经处理的废物被倾倒在湖泊和河流中，由于食物链中的重金属污染，特别是铬Cr6+，造成了严重的环境风险。它以绿色固体废物为先导，实现可持续发展目标。本研究主要分析了以甘蔗渣和花生壳粉为生物质的FeCl3改性生物炭去除Cr6+的时间效应。采用固定床反应器(B-SFBR)制备吸附剂，用量热法发现了Cr6+。通过BET, SEM-EDX和FTIR进行表征。改性花生壳粉在pH为2、振荡时间为180 min、转速为150 rpm、投加量为0.3 g、Cr6+ conc为20 mg/L的条件下，Cr6+去除率最高，达到99.97%。改性SB的去除率为98.96%，Cr6+ conc为20 mg/L，投加量0.3 g, pH为2，振荡速度150 rpm，时间180 min。因此，本实验研究表明，FeCl3改性花生壳粉对Cr6+的去除率可达99.97%。

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Removal of Cr6+ from Synthetic Polluted Water using Fe Modified Sugarcane Bagasse & Peanut shell Powder

Unprocessed waste is dumped in lakes and rivers which possess a severe environmental risk through heavy metal’s contamination within the food chain, especially chromium Cr6+. It applies for sustainable development goals by using green solid waste as a precursor. This research mainly focuses upon the analysis of time effect for Cr6+ removal by FeCl3 modified biochar using sugarcane bagasse and peanut shell powder as biomass. Adsorbent preparation was done using Bench-Scale Fixed Bed Reactor (B-SFBR) and Cr6+ was found using the calorimetric method. Characterization was done by BET, SEM-EDX, and FTIR. The highest Cr6+ percentage removal was achieved by Modified Peanut shell Powder with 99.97% removal upon pH 2, shaking time 180 mints, speed = 150 rpm, dosage 0.3 g, Cr6+ conc 20 mg/L. Percentage Removal by Modified SB was 98.96% with Cr6+ conc 20 mg/L, dosage 0.3 g, pH 2, shaking speed 150 rpm, time 180 mints. Hence, the present experimental research concludes that FeCl3 modified peanut shell powder shows greater Cr6+ removal efficiency up to 99.97 %.

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Journal of Chemistry and Environment Chemistry and Environmental Sciences-

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期刊介绍： Journal of Chemistry and Environment (ISSN: 2959-0132) is a peer-reviewed, open-access international journal that publishes original research and reviews in the fields of chemistry and protecting our environment for the future in an ongoing way. Our central goal is to provide a hub for researchers working across all subjects to present their discoveries, and to be a forum for the discussion of the important issues in the field. All scales of studies and analysis, from impactful fundamental advances in chemistry to interdisciplinary research across physical chemistry, organic chemistry, inorganic chemistry, biochemistry, chemical engineering, and environmental chemistry disciplines are welcomed. All manuscripts must be prepared in English and are subject to a rigorous and fair peer-review process. Accepted papers will appear online within 3 weeks followed by printed hard copies. Note: There are no Article Publication Charges. (100% waived). Welcome to submit your Mini reviews, full reviews, and research articles. Journal of Chemistry and Environment aims to publish high-quality research in the following areas: (Topics include, but are not limited to, the following) • Physical, organic, inorganic & analytical chemistry • Biochemistry & medicinal chemistry • Environmental chemistry & environmental impacts of energy technologies • Chemical physics, material & computational chemistry • Catalysis, electrocatalysis & photocatalysis • Energy, fuel cells & batteries Journal of Chemistry and Environment publishes: • Full papers • Reviews • Minireviews