Investigation on the oil sorption capability of silkworm cocoon waste

Author:

Shao Jiaxing1,Jiang Yueqi2,Huang Huiming3,Zhao HongPing3,Cheng Lan1ORCID

Affiliation:

1. State Key Laboratory of Resource Insects, College of Sericulture, Textile and Biomass Science, Yibin Academy, Southwest University, China

2. West China School of Medicine, Sichuan University, China

3. Institute of Biomechanics and Medical Engineering, Tsinghua University, China

Abstract

In this study, degummed and undegummed silkworm cocoon wastes were used to investigate their oil sorption capabilities for three kinds of oils, namely motor oil, vegetable oil, and crude oil. The laboratory-scale oil sorption results reveal that degummed silkworm cocoon waste has sorption capacities of 16.7, 15.8, and 14.2 g/g for motor oil, vegetable oil, and crude oil, respectively. It exhibits higher sorption capacities for these three oils compared with raw cocoons and cocoon scrap. These sorbents also exhibited excellent oil/water selectivity, retention capacity, and reusability. According to the large-scale experiment, the crude oil can be removed completely by degummed silkworm cocoon waste in 20 min, which shows that degummed silkworm cocoon waste could be considered a good alternative to synthetic sorbent materials applied to oil removal and recycling.

Funder

Yibin Academy of Southwest University

National Natural Science Foundation of China

Publisher

SAGE Publications

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