Influence of coagulation process on the ultrafiltration performance – The roles of Al species and characteristics of algae-laden water

Zhang, Dawei; Xu, Hengyong; Wang, Xi; Wang, Dongsheng; Duan, Jinming; Men, Bin

doi:10.1016/j.seppur.2017.04.004

Cited by 32 publications

(3 citation statements)

References 45 publications

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“…49 Specific operating details of this characterization could be found in the previous literature. 50…”

Section: Methodsmentioning

confidence: 99%

“…On the basis of the EEM spectra, DOM could be categorized into five fractions, i.e., aromatic protein I, aromatic protein II, fulvic acid-like, soluble microbial byproduct-like, and humic acid-like organics, and each fraction was quantified by integrating the volume beneath each EEM region . Specific operating details of this characterization could be found in the previous literature …”

Section: Methodsmentioning

confidence: 99%

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Critical Factors Affecting the Level of Dissolved Manganese in Different Raw Water and its Removal at Water Treatment Plants

Chen

et al. 2021

ACS EST Water

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Dissolved Mn concentration fluctuates a lot in source water, which presents a challenge for water treatment. It is crucial to identify the critical factors affecting the dissolved Mn level in source water and select appropriate treatment strategies for dissolved Mn removal. This study investigated four groups of water sources and water treatment plants (WTPs) and tracked Mn from water sources to WTPs. Results showed that the bottom sediments and porewater of both reservoirs and rivers all contained plentiful Mn in reductive form. However, Mn content and speciation in sediments and porewater could not explain the difference of dissolved Mn concentration in WTP raw water. Instead, dissolved organic carbon (DOC), dissolved oxygen, and pH were identified as critical factors controlling Mn transformation and dissolved Mn levels in bulk source water. Chemical oxidation with chlorine and chlorine dioxide effectively removed Mn from low-DOC water (DOC < 3.0 mg/L) but failed when applied to high-DOC water (DOC > 7.0 mg/L). Under this case, biological pretreatment showed advantages in treating Mn in high-DOC water. This study highlighted the importance of considering significant water quality parameters when predicting the Mn level in WTP influent water and choosing suitable techniques for effective Mn removal.

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“…49 Specific operating details of this characterization could be found in the previous literature. 50…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Critical Factors Affecting the Level of Dissolved Manganese in Different Raw Water and its Removal at Water Treatment Plants

Chen

et al. 2021

ACS EST Water

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“…The typical pretreatment technologies can be divided into three types, according to the principles, which are chemical treatment [ 5 , 7 , 8 , 9 ], biological treatment [ 10 , 11 , 12 ] and physical treatment [ 2 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

The Combined Process of Paper Filtration and Ultrafiltration for the Pretreatment of the Biogas Slurry from Swine Manure

Zhan

Dong

Yin

et al. 2018

IJERPH

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The membrane process had been applied for the advanced treatment of pig farm biogas slurry. As studied, this physical pretreatment, with low cost and high efficiency of the suspended solids removal and nutrient retention, is required to control membrane fouling. The combined process of paper filtration and ultrafiltration in a pilot scale was applied in the present study. The main objective was to explore and identify the feasibility of the new process for the pretreatment of the separation liquid of pig farm biogas slurry. A precision identification experiment of paper filtration and the multi-batch repetitive experiments of the combined process were designed. The results showed, at the identified paper filtration precision of 50μm and an operating pressure of 0.3 bar of the ultrafiltration process, that the flux rate at the stable stage of the multi-batch operation was around 295.00 L/h. The combined process achieved an overall processing rate of 345.41 ± 18.81 L/h and a volume permeation proportion of 82.45% ± 0.85%. The TSS was removed by 95.71%, but total nitrogen (TN) and ammonia nitrogen (NH3-N) were retained by 76.29% ± 2.04% and 73.74% ± 2.10%, respectively. Comprehensively, the requirement for the pretreatment was obtained.

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Diatomite-enhanced coagulation for algal removal in polluted raw water: performance optimization and pilot-scale study

Jiang

Ding

Zhu³

et al. 2021

Environ Sci Pollut Res

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Influence of coagulation process on the ultrafiltration performance – The roles of Al species and characteristics of algae-laden water

Cited by 32 publications

References 45 publications

Critical Factors Affecting the Level of Dissolved Manganese in Different Raw Water and its Removal at Water Treatment Plants

Critical Factors Affecting the Level of Dissolved Manganese in Different Raw Water and its Removal at Water Treatment Plants

The Combined Process of Paper Filtration and Ultrafiltration for the Pretreatment of the Biogas Slurry from Swine Manure

Diatomite-enhanced coagulation for algal removal in polluted raw water: performance optimization and pilot-scale study

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