亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Restoring phosphorus from water to soil: Using calcined eggshells for P adsorption and subsequent application of the adsorbent as a P fertilizer

吸附 化学 蛋壳 煅烧 肥料 朗缪尔 核化学 朗缪尔吸附模型 生态学 有机化学 催化作用 生物
作者
Jae-In Lee,Jeong-Man Kim,Soo‐Cheul Yoo,Eun Hea Jho,Chang‐Gu Lee,Seong‐Jik Park
出处
期刊:Chemosphere [Elsevier BV]
卷期号:287: 132267-132267 被引量:62
标识
DOI:10.1016/j.chemosphere.2021.132267
摘要

This study investigated the solution for two environmental issues: excess of P in water and its deficiency in soil, which is restored by transferring the adsorbed P from water into the soil using eggshell as an adsorbent. The eggshells were calcined at different temperatures to improve their adsorption capacity, and evaluated for their physical/chemical properties and P adsorption capacity. The eggshells calcined at 800 °C (CES-800) had the highest P adsorption; CaCO3 decomposed into 23.6% of CaO and 40.8% of Ca(OH)2, eluting more Ca that reacted with soluble P in water. X-ray diffraction analysis confirmed that CES-800 removed P as hydroxylapatite by reacting with Ca. Pseudo-first-order and Langmuir models suitably described the kinetic and equilibrium of P adsorption by CES-800, respectively. The maximum adsorption capacity of CES-800 was 108.2 mg g−1. As the solution pH increased from 3 to 11, the adsorption amount decreased from 99.8 mg g−1 to 62.3 mg g−1. The feasibility of CES-800 as a filter medium was assessed using real lake water under dynamic flow conditions; > 90% of P removal was achieved at 158 h, and the P adsorbed was 11.5 mg g−1. When CES-800 and P adsorbed CES-800 (P-CES-800) were applied to the soil at the studied rates, the earthworms were unaffected by toxicity, suggesting the use of both adsorbents in soil without adverse effects. The shoot fresh weight, tiller number, and total dry weight significantly increased in P-CES-800 applied rice plants compared to the control plants, indicating that P-CES-800 can be a good alternative to conventional P-fertilizer in rice cultivation.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
22秒前
科研通AI2S应助科研通管家采纳,获得10
26秒前
科研通AI2S应助科研通管家采纳,获得10
26秒前
Ma发布了新的文献求助10
32秒前
32秒前
科研通AI5应助Ma采纳,获得10
53秒前
忧伤的绍辉完成签到 ,获得积分10
54秒前
隐形曼青应助易四夕采纳,获得10
58秒前
1分钟前
易四夕发布了新的文献求助10
1分钟前
1分钟前
2分钟前
Ma发布了新的文献求助10
2分钟前
2分钟前
随机子发布了新的文献求助10
2分钟前
2分钟前
Ava应助科研通管家采纳,获得10
2分钟前
科目三应助科研通管家采纳,获得10
2分钟前
科研通AI2S应助科研通管家采纳,获得10
2分钟前
Ma发布了新的文献求助10
3分钟前
Ma完成签到,获得积分10
3分钟前
3分钟前
易四夕发布了新的文献求助10
4分钟前
4分钟前
4分钟前
英姑应助王大壮采纳,获得10
4分钟前
SciGPT应助科研通管家采纳,获得10
4分钟前
4分钟前
4分钟前
4分钟前
Mine发布了新的文献求助10
4分钟前
王大壮发布了新的文献求助10
4分钟前
Mine完成签到,获得积分10
5分钟前
郗妫完成签到,获得积分10
5分钟前
王大壮发布了新的文献求助10
5分钟前
科研通AI5应助Mine采纳,获得30
5分钟前
5分钟前
852应助美好颜采纳,获得10
5分钟前
纯情女大完成签到 ,获得积分10
5分钟前
6分钟前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
Immigrant Incorporation in East Asian Democracies 600
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3968504
求助须知:如何正确求助?哪些是违规求助? 3513278
关于积分的说明 11167214
捐赠科研通 3248660
什么是DOI,文献DOI怎么找? 1794386
邀请新用户注册赠送积分活动 875030
科研通“疑难数据库(出版商)”最低求助积分说明 804638