Research on Phosphorus Removal Performance of Portland Blast Furnace Slag Cement
[1]Research on Phosphorus Removal Performance of Portland Blast Furnace Slag Cement.Research on Phosphorus Removal Performance of Portland Blast Furnace Slag Cement[J].Journal of Zhengzhou University (Engineering Science),2022,43(03):73-80.[doi:10.13705/j.issn.1671-6833.2021.06.007]
Copy
Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
43
Number of periods:
2022 03
Page number:
73-80
Column:
Public date:
2022-04-10
- Title:
- Research on Phosphorus Removal Performance of Portland Blast Furnace Slag Cement
- CLC:
- X703. 1
- DOI:
- 10.13705/j.issn.1671-6833.2021.06.007
- Abstract:
- This study aimed to solve the problem of deep purification of high concentration phosphorus wastewater and to explore the phosphorus removal potential of portland blast furnace slag cement.The adsorption of the wastewater containing 150 mg/L TP on portland blast furnace slag cement was discussed.Combined with scanning electron microscopy(SEM)and X-ray diffraction(XRD), the surface morphology and crystal structure of portland blast furnace slag cement before and after phosphorus adsorption were characterized and analyzed.The results of adsorption kinetics experiments showed that portland blast furnace slag cement as a adsorbent could treat high phosphorus-containing wastewater, removal rate up to 90.3%, adsorption capacity up to 27 mg/g, the adsorption kinetic process could be well explained by using pseudo-second-order kinetic model and intra-particle diffusion model, the dephosphorization rate is mainly limited by the chemical reaction rate, compared with surface adsorption, intra-particle diffusion is the decisive step in the adsorption process.In addition, isotherm studies showed that phosphorus adsorption on portland blast furnace slag cement fitted the Freundlich and Langmuir model, with the correlation coefficients over 0.97.The results indicated that both single-layer adsorption and multi-layer adsorption occurred in portland blast furnace slag cement, and the non-uniform active sites on the surface were slightly stronger than the uniform active sites, the maximum phosphorus adsorption capacity determined by Langmuir isotherm plot was 47 mg/g.Through orthogonal experiments, the optimal reaction conditions were as follows: pH is 7, initial phosphorus concentration is 150 mg/L, dosage is 5 g/L, contact time is 18 h.The portland blast furnace slag cement can effectively neutralize the excess acid and alkali, and has good buffering characteristics, which may be related to the protonation and deprotonation of the metal ions, the ligand exchange in chemisorption was the main mechanism of phosphorus removal.Portland blast furnace slag cement is suitable for high concentration of phosphorus containing wastewater, also suitable for pH unstable phosphorus containing wastewater.
- References:
-
[1] KURZBAUM E, BAR SHALOM O. The potential of phosphate removal from dairy wastewater and municipal wastewater effluents using a lanthanum-modified bentonite[ J] . Applied clay science,2016,123:182-186.[2] 刘波,陈玉成,王莉玮,等. 4 种人工湿地填料对磷的 吸附 特 性 分 析 [ J] . 环 境 工 程 学 报, 2010, 4 ( 1 ) : 44-48.[3] 黄添浩,林磊,王趁义,等. 吸氮除磷材料的研究和 应用现状 [ J ] . 化 工 新 型 材 料, 2019, 47 ( 3 ) : 39 - 42,46.[4] SUN T T,DU R, DAN Q P, et al. Rapidly achieving partial nitrification of municipal wastewater in enhanced biological phosphorus removal ( EBPR ) reactor:effect of heterotrophs proliferation and microbial interactions [ J ] . Bioresource technology, 2021, 340:125712.[5] 彭赵旭,韩微,娄天宇,等. 剩余污泥驯化过程中的 除磷性 能 [ J] . 郑 州 大 学 学 报 ( 工 学 版) , 2020, 41 (5) :72-75,96.[6] ARBELAEZ BRETON L,MAHDI Z,PRATT C,et al. Modification of hardwood derived biochar to improve phosphorus adsorption [ J ] . Environments, 2021, 8 (5) :41.[7] WU B L,WAN J,ZHANG Y Y,et al. Selective phosphate removal from water and wastewater using sorption: process fundamentals and removal mechanisms [ J ] . Environmental science & technology, 2020, 54 (1) :50-66.[8] BROOKS A S,ROZENWALD M N,GEOHRING L D, et al. Phosphorus removal by wollastonite:a constructed wetland substrate[ J] . Ecological engineering,2000,15 (1 / 2) :121-132.[9] GUSTAFSSON J P,RENMAN A,RENMAN G, et al. Phosphate removal by mineral-based sorbents used in filters for small-scale wastewater treatment [ J] . Water research,2008,42(1 / 2) :189-197.[10] 籍国东,孙铁珩,李顺. 人工湿地及其在工业废水处理 中的应用[J]. 应用生态学报,2002,13(2):224-228.[11] YANG Y,ZHAO Y Q,BABATUNDE A O,et al. Characteristics and mechanisms of phosphate adsorption on dewatered alum sludge[ J] . Separation and purification technology,2006,51(2) :193-200.[12] LIU R B,MAO Y, SHEN C, et al. Can biofilm affect alum sludge adsorption:an engineering scope in a novel biofilm reactor for wastewater treatment[ J] . Chemical engineering journal,2017,328:683-690.[13] LIU R B,ZHAO Y Q,SIBILLE C,et al. Evaluation of natural organic matter release from alum sludge reuse in wastewater treatment and its role in P adsorption [ J]. Chemical engineering journal,2016,302:120-127.[14] WEI Y F,LIANG X J,WU H H,et al. Efficient phosphate removal by dendrite-like halloysite-zinc oxide nanocomposites prepared via noncovalent hybridization [ J] . Applied clay science,2021,213:106232.[15] ZHANG G S, LIU H J, LIU R P, et al. Removal of phosphate from water by a Fe-Mn binary oxide adsorbent [ J ] . Journal of colloid and interface science, 2009,335(2) :168-174.[16] YANG Y,ZHAO Y Q,LIU R B,et al. Global development of various emerged substrates utilized in constructed wetlands [ J] . Bioresource technology, 2018, 261: 441-452.[17] GAO J Q,ZHAO J,ZHANG J S,et al. Preparation of a new low-cost substrate prepared from drinking water treatment sludge ( DWTS ) / bentonite / zeolite / fly ash for rapid phosphorus removal in constructed wetlands [ J] . Journal of cleaner production,2020,261:121110.[18] 国家环境保护总局. 水质 总磷的测定 钼酸铵分光 光度法:GB 11893—1989[ S] . 北京:中国标准出版 社, 1989.[19] ZHANG R C, LEIVISKÄ T. Surface modification of pine bark with quaternary ammonium groups and its use for vanadium removal [ J ] . Chemical engineering journal,2020,385:123967.[20] CHUNG H K,KIM W H,PARK J,et al. Application of langmuir and freundlich isotherms to predict adsorbate removal efficiency or required amount of adsorbent [ J] . Journal of industrial and engineering chemistry, 2015,28:241-246.[21] 徐颖,叶志隆,叶欣,等. 给水污泥对水中磷的吸附 性能[ J] . 环境工程学报,2018,12(3) :712-719.[22] CHEN J G, KONG H N, WU D Y, et al. Phosphate immobilization from aqueous solution by fly ashes in relation to their composition [ J] . Journal of hazardous materials,2007,139(2) :293-300.[23] LI Q,ZHANG J S,GAO J Q,et al. Preparation of a novel non-burning polyaluminum chloride residue ( PACR) compound filler and its phosphate removal mechanisms[ J] . Environmental science and pollution research,2021:1-14. [24] 王信,马啸宙,周雯,等. 给水污泥负载 Fe 合物除磷 行为效果及机理[ J] . 环境工程学报,2016,10( 10) : 5420-5428.[25] 杨永哲,赵亚乾,BABATUNDE A,等. 给水厂铝污泥 对磷的吸附特性及陈化时间的影响[ J] . 中国给水 排水,2015,31(11) :137-141.[26] ZHANG L L, LU Y D,KANG J F, et al. Selection of optimum composition of aluminoborosilicate glasses with excellent dielectric properties according to orthogonal experiment design [ J] . Journal of materials science: materials in electronics, 2018, 29 ( 7 ) : 5746-5752.[27] 王诗博,宁平,瞿广飞,等. 改性麦饭石吸附除磷性 能研究 [ J] . 化 工 新 型 材 料, 2017, 45 ( 12 ) : 137 - 140,144.[28] 赵先富,马沛明,邱昌恩,等. 聚合硫酸铁除磷效果 及藻类的生理生态响应[ J] . 中国环境科学,2010, 30(增刊 1) :14-18.
- Similar References:
Memo
-
Last Update:
2022-05-02