REMOVAL OF REFRACTORY TETRAHYDROXYMETHYL PHOSPHORUS CHLORIDE IN TANNERY WASTEWATER BY FENTON OXIDATION

YU Jing; GUO Xinchao; SUN Changshun; CHEN Xuan

doi:10.13205/j.hjgc.202210007

Volume 40 Issue 10

Oct. 2022

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YU Jing, GUO Xinchao, SUN Changshun, CHEN Xuan. REMOVAL OF REFRACTORY TETRAHYDROXYMETHYL PHOSPHORUS CHLORIDE IN TANNERY WASTEWATER BY FENTON OXIDATION[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(10): 49-54. doi: 10.13205/j.hjgc.202210007

Citation:

YU Jing, GUO Xinchao, SUN Changshun, CHEN Xuan. REMOVAL OF REFRACTORY TETRAHYDROXYMETHYL PHOSPHORUS CHLORIDE IN TANNERY WASTEWATER BY FENTON OXIDATION[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(10): 49-54. doi: 10.13205/j.hjgc.202210007

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REMOVAL OF REFRACTORY TETRAHYDROXYMETHYL PHOSPHORUS CHLORIDE IN TANNERY WASTEWATER BY FENTON OXIDATION

doi: 10.13205/j.hjgc.202210007

1. Shaanxi Key Laboratory of Environmental Engineering, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Environmental and Municipal Engineering Department, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2. Shaanxi Provincial Academy of Environmental Science, Xi'an 710061, China

Received Date: 2022-10-10

Abstract

Abstract

Tetrahydroxymethyl phosphorus chloride (THPC) in tannery wastewater has the characteristics of stable structure and inhibition of wastewater treatment microorganisms, and the traditional biochemical treatment technologies cannot treat this kind of wastewater effectively. In this study, Fenton oxidation method was used to treat refractory organic phosphorus tetrahydroxymethyl phosphorus chloride (THPC) in tannery wastewater. The effects of H₂O₂ dosage, pH, m (Fe²⁺)/m (H₂O₂), reaction time and UV wavelength on the removal of total phosphorus and COD were investigated, and the kinetic model of total phosphorus degradation was established and analyzed. The results showed that when pH=4, H₂O₂ dosage=6667 mg/L, m (Fe²⁺)/m (H₂O₂)=1 and reaction time=80 min, the removal rates of total phosphorus and COD reached 43% and 83% respectively; it was found that UV assisted Fenton system (wavelength=185 nm) could improve the oxidation effect of THPC; the kinetic model showed that the dosage of hydrogen peroxide (q=1.065) was higher than that of organic matter (a=0.858), indicating that the reaction rate of Fenton oxidative degradation of total phosphorus was mainly controlled by the dosage of H₂O₂.
- Fenton oxidation,
- tannery wastewater,
- organic phosphorus,
- tetrahydroxymethyl phosphorus chloride,
- dynamic model

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References(29)

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