Fenton-like degradation of Methylene Blue using paper mill sludge-derived magnetically separable heterogeneous catalyst: Characterization and mechanism

Zhou, Guoqiang; Chen, Ziwen; Fang, Fei; He, Yufeng; Sun, Haili; Shi, Huixiang

doi:10.1016/j.jes.2015.01.026

Cited by 50 publications

(15 citation statements)

References 18 publications

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“…Wang [39] found a significant positive effect on the removal of N by Eichhornia crassipes , which indicated that the large-scale utilization of E. crassipes was practical for the removal of nutrients in Lake Dianchi Caohai. Zhou [41] also used 10-year monitoring data of Lake Dianchi Caohai from 2002 to 2011 to reveal that the nutrients were the major factor that influenced the fluctuation of water quality, and total phosphorus (TP) and total nitrogen (TN) were the specific pollutants of the lake. Moreover, the influences of meteorological conditions and water quality factors on Chla concentration that indicates phytoplankton biomass in Lake Dianchi Caohai were also analyzed by Wei [8], and their results showed that TP might be the most important factor for the control of phytoplankton biomass.…”

Section: Introductionmentioning

confidence: 99%

“…In this study, a depth-averaged two-dimensional hydrodynamic and water quality model (MIKE 21) was used to simulate the lake flow patterns. We selected TP and TN, in accordance with the direct circulation proposed by Wei [8] and Zhou [41], to predict the spatial distributions of NH 3 -N, TP, TN, and Chla by both considering and ignoring hydraulic structures (water replacement channel). The hydrodynamic processes and distribution of Chla were connected to analyze the hydraulic mechanisms driving the accumulation of cyanobacteria in Lake Dianchi Caohai.…”

Section: Introductionmentioning

confidence: 99%

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The Hydraulic Driving Mechanisms of Cyanobacteria Accumulation and the Effects of Flow Pattern on Ecological Restoration in Lake Dianchi Caohai

Zhang

Liang

Zhao

et al. 2019

IJERPH

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Due to rapid increases in socioeconomic development and the human population over the past few decades, the shallow lakes in China have suffered from eutrophication and poor water quality. The conditions in Lake Dianchi Caohai, which is in the northern part of Lake Dianchi, are considered the most serious. The ecological restoration of Lake Dianchi Caohai began in the late 1980s. Lake managers and the public have been puzzled by the lack of a significant response of the water quality to the flow pattern despite the tremendous investment in water quality improvements. Therefore, lake managers desperately need to understand the responses of pollutant behaviors to proposed management measures. In this paper, a depth-averaged two-dimensional hydrodynamic and water quality model based on hydrological data, measured lake bed elevation, and water quality data is developed to simulate the flow field and water quality of Lake Dianchi Caohai. This model was validated using water quality data from the Caohaizhongxin site in 2016, and a close agreement was found between the model results and observations. Wind-driven circulation in Lake Dianchi Caohai was observed in the model results, which revealed that the lake flow pattern was dominated by wind-driven circulation, while the inflow/outflow played only a subsidiary role during this period. The formation of the wind-driven current in Lake Dianchi Caohai could be roughly divided into three stages. The hydrodynamic processes connected with the distribution of chlorophyll a are evaluated and discussed to adequately understand the hydraulic mechanisms driving the accumulation of cyanobacteria. Moreover, we designed three scenarios after comparing all possible operation scenarios to analyze the contributions of each different operation scenario to the water quality improvements. The optimal ecological operation scenario which has the best impacts on the water quality, especially the reduction in Chla and NH3-N concentration, is proposed based on our comprehensive analysis. The water quality improvement and management suggestions proposed in this paper are based on lake flow patterns and make up for previous studies that did not consider the effects of hydraulic characteristics on water quality improvement in Lake Dianchi Caohai.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Hydraulic Driving Mechanisms of Cyanobacteria Accumulation and the Effects of Flow Pattern on Ecological Restoration in Lake Dianchi Caohai

Zhang

Liang

Zhao

et al. 2019

IJERPH

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“…Both prepared materials showed high stability and activity in 4 successive cycles. Incipient wet impregnation was implemented for paper mill sludge modification (Zhou et al, 2015) to produce stable and active catalyst for Methylene Blue (50 mg/L) degradation. 94% dye removal was obtained at pH 4 with 1 g catalyst/L and 2 ml/L of 3% H2O2.…”

Section: Methodsmentioning

confidence: 99%

A mini review: Optimal dye removal by fenton process catalysed with waste materials

Mandić¹,

Bečelić‐Tomin²,

Kerkez³

et al. 2020

Proceedings - The Tenth International Symposium GRID 2020

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Large quantities of solid waste from different industries are commonly disposed in landfills, where can generate wide range of environmental problems. Therefore, the aim of this paper is to give insight on the usage of various waste materials as oxidation catalysts in different Fenton processes for dye removal. In that manner the circular value chain of these materials will be reinforced, obtaining disposal cost reduction and further value addition. Some of industrial wastes (fly ash, electric arc furnace dust, red mud, coal bottom ash, activated carbon from biomass, etc.) that have been used to catalyse Fenton reaction in various researches are reviewed from optimization point of view. Both types of optimization, one-factor-at-a-time (OFAT) and response surface methodology (RSM) are investigated. The study revealed that factors as catalyst concentration, pH value, hydrogen peroxide concentration, dye concentration and reaction time are main factors that influence final Fenton capacity as oxidation process catalysed with reviewed waste materials.

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“…Zhou vd. 2015 yılında yayımladıkları çalışmada metilen mavisinin kağıt fabrikası atıksularından elde edilen çamur ile hazırladıkları manyetik olarak ayrılabilir heterojen katalizörler varlığında Fenton benzeri oksidasyonunda 50 ppm'lik metilen mavisi çözeltisini arıtmak için gerekli katalizör yüklemesini 1 g/L olarak tespit etmişlerdir [14]. Tušar vd.…”

Section: Katalizör Yüklemesi Etkisi (Effect Of the Catalyst Loading)unclassified

Çevre dostu atıksu arıtımı yöntemleri ile mikrokirletici giderimi kinetiğinin incelenmesi: LaFeO3 perovskit tipi katalizör varlığında metilen mavisinin Fenton benzeri oksidasyonu

Palas¹,

Ersöz²,

Atalay³

2017

Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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Fenton-like degradation of Methylene Blue using paper mill sludge-derived magnetically separable heterogeneous catalyst: Characterization and mechanism

Cited by 50 publications

References 18 publications

The Hydraulic Driving Mechanisms of Cyanobacteria Accumulation and the Effects of Flow Pattern on Ecological Restoration in Lake Dianchi Caohai

The Hydraulic Driving Mechanisms of Cyanobacteria Accumulation and the Effects of Flow Pattern on Ecological Restoration in Lake Dianchi Caohai

A mini review: Optimal dye removal by fenton process catalysed with waste materials

Çevre dostu atıksu arıtımı yöntemleri ile mikrokirletici giderimi kinetiğinin incelenmesi: LaFeO3 perovskit tipi katalizör varlığında metilen mavisinin Fenton benzeri oksidasyonu

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