Hydraulic fracturing flow-back fluid treatment by ZVI/H2O2 process

被引：6

作者：

Marcinowski, Piotr ^{[1
]}

Zapalowska, Ewa ^{[1
]}

Maksymiec, Justyna ^{[1
]}

Naumczyk, Jeremi ^{[1
]}

Bogacki, Jan ^{[1
]}

机构：

[1] Warsaw Univ Technol, Fac Bldg Serv Hydro & Environm Engn, Nowowiejska 20, PL-00653 Warsaw, Poland

来源：

DESALINATION AND WATER TREATMENT | 2018年 / 129卷

关键词：

Hydraulic fracturing flow-back fluid; Wastewater treatment; ZVI; ZVI/H2O2; process; Zero-valent iron; ZERO-VALENT IRON; WASTE-WATER TREATMENT; GAS PRODUCED WATER; FENTON-LIKE CATALYST; TREATMENT OPTIONS; ORGANIC-COMPOUNDS; DYE DECOLORATION; OXIDATION; OIL; REMOVAL;

D O I：

10.5004/dwt.2018.23086

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Hydraulic fracturing flow-back fluid (HFFBF) was treated by a zero-valent iron (ZVI)/H2O2 process. The initial HFFBF chemical oxygen demand (COD) was 3,440 mg/L and the 5-d biochemical oxygen demand (BOD5)/COD ratio was 0.259. Under the optimal 500/6,884 mg/L of ZVI/H2O2 reagent doses, and a 120-min process time, COD was decreased to 680 mg/L (80.2% removal). Additionally, as a result of pollutants' chemical oxidation, the wastewater's susceptibility for biodegradation was essentially increased to BOD5/COD 0.971. To assess the maximum share of coagulation in the total ZVI/H2O2 process treatment effect, a coagulation process was additionally employed. The coagulation for an optimal 1.5mL/L of iron-based PIX 111 coagulant dose obtained 1,200 mg/L of COD, 65.1% removal. The use of coagulation only allowed an increase in BOD5/COD to 0.625. As a result of the oxidation step during ZVI/H2O2 process, the persistent compounds were transformed to more vulnerable ones.

引用

页码：177 / 184

页数：8

共 79 条

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