Open AccessStruvite as seed materials for treatment of heavy metals in wastewater
Author(s) -
Ruobing Zhangchen,
Wanning Liu,
Qian Guan,
Haiyan Ji,
Yingpeng Li,
Jiefei Zhang,
Jiatian Song,
Zhong Yun,
Lei Zhou
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/770/1/012034
Subject(s) - struvite , wastewater , adsorption , sewage treatment , fertilizer , heavy metals , environmental science , pollutant , waste management , nucleation , materials science , pulp and paper industry , chemistry , environmental engineering , environmental chemistry , engineering , organic chemistry
Heavy metals (HMs) in the pollutants once discharge into nature without treatment, will easy to destroy the ecological balance. Crystallization is used as a feasible technology for treatment of HMs from wastewater owing to the advantage of obtaining the high purity struvite product, which used as a slow-release fertilizer. After experiments, the results revealed that struvite has a certain feasibility as a seed material to minimize HMs from wastewater. When the condition of pH was 9.5, usage of 2.5g struvite could achieve the removal efficiency of about 95%. The XRD pattern and SEM image analyzed that struvite removes HMs mainly through surface collapse as the adsorption or nucleation growth site for HMs adhering, thereby achieving the aim of removing HMs. This experiment can provide a new channel for the removal of HMs from real wastewater in the future application.