Physicochemical properties and risk assessment of perishable waste primary products

Penghao Li; Fengxiang Zhu; Wang Weiping; Ying Zhou; Yanlai Yao; Leidong Hong; Weijing Zhu; Chunlai Hong; Xiaoxia Liu; Hongjin Chen; Yijun Yu

doi:10.1016/j.jenvman.2023.117549

Physicochemical properties and risk assessment of perishable waste primary products

J Environ Manage. 2023 Jul 1:337:117549. doi: 10.1016/j.jenvman.2023.117549. Epub 2023 Mar 20.

Authors

Penghao Li¹, Fengxiang Zhu², Wang Weiping², Ying Zhou³, Yanlai Yao², Leidong Hong², Weijing Zhu², Chunlai Hong⁴, Xiaoxia Liu⁵, Hongjin Chen⁵, Yijun Yu⁵

Affiliations

¹ Zhejiang University of Technology, Hangzhou 310014 China; Institute of Environment, Resource, Soil & Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021 China.
² Institute of Environment, Resource, Soil & Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021 China.
³ Zhejiang University of Technology, Hangzhou 310014 China.
⁴ Institute of Environment, Resource, Soil & Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021 China. Electronic address: hongcl@zaas.ac.cn.
⁵ Zhejiang Cultivated Land Quality and Fertilizer Administration Station, Hangzhou 310019, China.

PMID: 36934502
DOI: 10.1016/j.jenvman.2023.117549

Abstract

Fertilization has become one of the most important ways to recycle perishable waste. In order to reveal the effect of the nutrient of the perishable waste primary products on the market and the possible impact of their application, 136 perishable waste primary products were sampled in nine cities in Zhejiang province, China. The result shows that these products have high nutrient content (average nutrient content was 5.00%). However, the conductivity (7.19 mS/cm) total soluble salt content (12.07%), and grease content (5.99%) were too high. The excessive salt and grease may cause harm to soil and crops, and become the main limiting factors for the fertilizer utilization of perishable waste. Heavy metal content of most of the samples met current commercial organic fertilizer standards, except that lead and chromium content of some samples exceeded the limit standard. Toluene, ethylbenzene, m & p-xylene were generally detected in the samples. These toxic and harmful substances have brought risks to the safe use of perishable waste into fertilizers.

Keywords: Fertilizer; Heavy metal; Nutrient; Organic pollutants; Perishable waste.

MeSH terms

Crops, Agricultural
Fertilizers / analysis
Metals, Heavy* / analysis
Risk Assessment
Soil / chemistry
Waste Products*

Substances

Waste Products
Fertilizers
Soil
Metals, Heavy