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Environmental Chemistry Letters

, Volume 16, Issue 2, pp 569–573 | Cite as

High zinc removal from water and soil using struvite-supported diatomite obtained by nitrogen and phosphate recovery from wastewater

  • Yuan Li
  • Xuejiang Wang
  • Hongbin Xu
  • Peng Xia
  • Hao Wang
  • Huanping Jing
  • Jing Li
  • Jianfu Zhao
Original Paper
  • 248 Downloads

Abstract

Zinc is known as an essential element of human life. However, excessive zinc discharge into water and soil causes water pollution, leading to serious health issues such as septicemia, meningitis and iron-deficiency anemia. Here, a novel material made of struvite-supported diatomite was obtained from eutrophic water treated by mesoporous MgO-modified diatomite. This material was applied for zinc remediation in aqueous solutions and contaminated soils to test the reuse of P-containing products. Struvite-supported diatomite was characterized by field emission scanning electron microscopy and X-ray diffraction. Results show that the maximum removal efficiency of Zn(II) from wastewater streams reached 90.54% at an initial pH of 5 and struvite-supported diatomite dosage of 0.3 g/L. Moreover, the X-ray diffraction patterns of precipitates after Zn(II) sorption show that the combination between zinc and the phosphate group played a key role for zinc removal in solution. For Zn-contaminated soils amended with 10% struvite-supported diatomite, available Zn decreased by 65.38% and acid soluble Zn decreased by 56.9% after 56 days.

Keywords

Struvite Nutrient recovery Zn(II) sorption Zinc immobilization Waste recycling 

Notes

Acknowledgements

The authors acknowledge the financial support by the Major Science and Technology Program for Water Pollution Control and Treatment (2017ZX07206-002-04) and National Natural Science Foundation of China (Nos. 41571301; 51678421; 21777120).

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2017

Authors and Affiliations

  1. 1.College of Environment and Water ConservancyZhengzhou UniversityZhengzhouChina
  2. 2.State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and EngineeringTongji UniversityShanghaiChina

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