双模型下基于废弃泡沫砼的HAP结晶法回收养猪废水中磷的影响因素分析

朱佳明; 贺玥澄; 龙定彪; 黄骞; 许文来; 蒲施桦; 简悦

doi:10.13205/j.hjgc.202308001

双模型下基于废弃泡沫砼的HAP结晶法回收养猪废水中磷的影响因素分析

doi: 10.13205/j.hjgc.202308001

朱佳明^1,2,
贺玥澄^1,2,3,
龙定彪^1,2,
黄骞³,
许文来³,
蒲施桦^1,2,,
简悦^1,2,

1. 重庆市畜牧科学院, 重庆 402460;
2. 国家生猪技术创新中心, 重庆 402460;
3. 成都理工大学地质灾害防治与地质环境保护国家重点实验室, 成都 610066

基金项目:

畜禽养殖环境调控与装备研发创新创业团队(19207)

重庆荣昌农牧高新技术产业研发专项(cstc2019ngzx0004)

国家现代农业产业技术体系资助(CARS-35)

详细信息

作者简介:
朱佳明(1993-),男。xrd610@126.com

通讯作者:
蒲施桦(1988-),女。pu88926@126.com

简悦(1990-),女。jiany16@163.com

计量
- 文章访问数: 99
- HTML全文浏览量: 10
- PDF下载量: 8
- 被引次数: 0
出版历程
- 收稿日期: 2022-08-17
- 网络出版日期: 2023-11-15

INVESTIGATION OF FACTORS INFLUENCING THE RECOVERY OF PHOSPHORUS FROM SWINE WASTEWATER BY HAP CRYSTALLIZATION BASED ON SPENT FOAM CONCRETE

ZHU Jiaming^1,2,
HE Yuecheng^1,2,3,
LONG Dingbiao^1,2,
HUANG Qian³,
XU Wenlai³,
PU Shihua^{1,2
,},
JIAN Yue^{1,2
,}

1. Chongqing Academy of Animal Sciences, Chongqing 402460, China;
2. National Center of Technology Innovation for Pigs, Chongqing 402460, China;
3. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610066, China

摘要

摘要: 采用羟基磷酸钙(HAP)结晶法回收模拟养猪废水中的磷,探究了以废弃泡沫砼为Ca源的磷回收处理过程中3种因素[pH、n(Ca²⁺)/n(PO^3-₄)、温度]的影响,利用Box-Behnken(BBD)得到最佳反应条件,并结合Visual MINETEQ模型探讨2种典型重金属Cu²⁺、Zn²⁺对HAP结晶体系的单独及联合影响。结果表明:基于磷回收的最佳反应条件为pH=9.37, n(Ca²⁺)/n(PO^3-₄)=1.669,温度=25.46 ℃;Cu²⁺对HAP结晶的影响大于Zn²⁺,联合投加时Cu²⁺、Zn²⁺的抑制作用增强;扫描电镜(SEM)表明重金属的引入改变了HAP表面结构,占据活性点位;能量色散X射线谱仪(EDS)表明Cu、Zn分别以9.79%、9.88%的质量比进入到了结晶产物中;Visual MINTEQ模拟结果证实Cu²⁺、Zn²⁺均会竞争HAP的构晶离子,抑制磷的回收,其中Cu²⁺主要与OH^-竞争,Zn²⁺主要与PO^3-₄竞争。研究可为废弃泡沫砼在均相条件下回收养猪废水中的磷提供参考。
- 废弃泡沫砼 /
- HAP /
- Box-Behnken /
- Visural MINTEQ /
- 磷回收
Abstract: The effect of three factors [pH, n(Ca²⁺)/n(PO₄^3-), and temperature] on the phosphorus recovery treatment process using waste foam concrete as the Ca source was investigated using the calcium hydroxyphosphate (HAP) crystallization method to recover phosphorus from simulated swine wastewater. The optimal reaction conditions were obtained using Box-Behnken (BBD) and combined with the Visual MINETEQ model to explore the individual and combined effects of 2 typical heavy metals (Cu²⁺、Zn²⁺) on the HAP crystallization system. The results showed that the optimal reaction conditions were pH=9.37, n(Ca²⁺)/n(PO₄^3-)=1.669, temperature=25.46 ℃; the effect of Cu²⁺ on HAP crystallization was greater than that of Zn²⁺, and the inhibitory effect of Cu²⁺ and Zn²⁺ was enhanced when combined with the injection; Scanning electron microscopy (SEM) showed that the introduction of heavy metals changed the HAP surface structure and occupied the active sites, and energy dispersive X-ray spectroscopy (EDS) showed that Cu and Zn entered the crystalline products at 9.79% and 9.88% mass ratios, respectively; Visual MINTEQ simulation results confirmed that Cu²⁺ and Zn²⁺ both compete for the constitutive ions of HAP and inhibit phosphorus recovery, with Cu²⁺ mainly competing for OH^- and Zn²⁺ mainly competing for PO₄^3-. This study provides a reference for the recovery of phosphorus from pig wastewater in waste foam concrete under homogeneous conditions.
- foam concrete /
- HAP /
- Box-Behnken /
- Visual MINTEQ /
- phosphorus recovery

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