Characterization and analysis of petrochemical wastewater through particle size distribution, biodegradability, and chemical composition

Xiaoqiang Jia; Dayao Jin; Chen Li; Wenyu Lu

doi:10.1016/j.cjche.2018.04.030

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Characterization and analysis of petrochemical wastewater through particle size distribution, biodegradability, and chemical composition

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Characterization and analysis of petrochemical wastewater through particle size distribution, biodegradability, and chemical composition
- Characterization and analysis of petrochemical wastewater through particle size distribution, biodegradability, and chemical composition
- 中国化学工程学报（英文版） 2019年27卷第2期页码：444-451
- Affiliations：
  
  1. 2 Key Laboratory of Systems Bioengineering, Tianjin University,Tianjin,China,300072
  2. 3 Synthetic Biology Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin),Tianjin,China,300072
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.04.030
  中图分类号：
- 纸质出版：2019
- Accepted：
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Xiaoqiang Jia, Dayao Jin, Chen Li, 等. Characterization and analysis of petrochemical wastewater through particle size distribution, biodegradability, and chemical composition[J]. 中国化学工程学报（英文版）, 2019,27(2):444-451.

Xiaoqiang Jia, Dayao Jin, Chen Li, Wenyu Lu. Characterization and analysis of petrochemical wastewater through particle size distribution, biodegradability, and chemical composition[J]. Chin.J.Chem.Eng., 2019, 27(2): 444-451.
Xiaoqiang Jia, Dayao Jin, Chen Li, 等. Characterization and analysis of petrochemical wastewater through particle size distribution, biodegradability, and chemical composition[J]. 中国化学工程学报（英文版）, 2019,27(2):444-451. DOI： 10.1016/j.cjche.2018.04.030.

Xiaoqiang Jia, Dayao Jin, Chen Li, Wenyu Lu. Characterization and analysis of petrochemical wastewater through particle size distribution, biodegradability, and chemical composition[J]. Chin.J.Chem.Eng., 2019, 27(2): 444-451. DOI： 10.1016/j.cjche.2018.04.030.

摘要

Abstract

The centralized treatment method is a widely used form of wastewater treatment that tends to be less effective at removing toxic substances. Therefore

a detailed analysis of the composition of wastewater can provide important information for the design of an effective wastewater treatment process. The objective of this paper was to investigate particle size distribution (PSD)

biodegradability

and the chemical composition of the petrochemical wastewater discharges. For this purpose

this project selected the petrochemical wastewater and treated wastewater of China National Offshore Oil Corporation Zhongjie Petrochemical Co

Ltd. as the analysis objects. The step-by-step filtration method

along with a molecular weight classification method

was selected to build the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) fingerprints of petrochemical wastewater and treated wastewater. The results showed that the main pollutants were settleable particles in petrochemical wastewater

which contributed to over 54.85% of the total COD. The colloidal particles with particle sizes in the range of 450-1000 nm had the highest COD value in the treated wastewater

which contributed 34.17% of the total COD of treated wastewater. The results of the BOD analysis showed that the soluble fractions were the main reason that treated wastewaters did not meet the treatment standards. Tests on the organic compounds in petrochemical wastewater found that there were mainly linear paraffins

branched paraffins

benzene series compounds

and some plasticizers in the influent of the petrochemical wastewater. The most abundant pollutants in treated petrochemical wastewater were the adjacent diisobutyl phthalate and the linear alkanes. Fourier transform infrared (FTIR) transmission spectroscopy analysis showed that the settleable particles of petrochemical wastewater and membrane bioreactor (MBR)-treated wastewater contained multiple types of organic substances. The results also indicated that removing the oil-settleable substances

the colloidal particles (450-1000 nm)

and the soluble organics will be necessary for the treatment of petrochemical wastewater.

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