Efficient degradation of polyacrylate containing wastewater by combined anaerobic–aerobic fluidized bed bioreactors

Song, Qi; Sun, Zheng; Chang, Yong Keun; Wei-feng, Zhang; Lv, Yingzhi; Wang, Jiayi; Sun, Fenghao; Ma, Yanxue; Li, Yuling; Wang, Fengbo; Chen, Xiaoguang

doi:10.1016/j.biortech.2021.125108

Cited by 15 publications

(4 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Melosira granulata is a Bacillariophyta alga, which is a photosynthetic autotrophic organism capable of releasing oxygen through photosynthesis to increase DO concentrations in water bodies [49]. We analyzed bacterial species and their abundance in lake water (LW), photocatalytic film (PF), and lake water treated with PF&W IC (LWPF) using the high-throughput sequencing method [50]. Figure 8 shows that the most dominant bacterial types in LW were the hgcI clade (28.6%) and the CL500-29 marine group (12.5%).…”

Section: Microbial Community Analysismentioning

confidence: 99%

Study of a New Photocatalytic Film Process Combined with a Constructed Wetland and an Analysis of Reoxygenation Pathways in a Water Body

Chen,

Ye,

Chen

et al. 2024

Sustainability

View full text Add to dashboard Cite

Pollution in water environments hinders both social progress and economic development. Wastewater treatment and the sustainable use of water resources are important factors in solving this problem. In a previous study, the authors proposed a process that used photocatalytic film as a back-end treatment in a composite iron–carbon constructed wetland (WIC&PF) to restore a mildly eutrophic water body. This method has strong reoxygenation effects, and can efficiently remove pollutants; these are qualities that have not been mentioned in previous studies regarding constructed wetlands. In this study, the authors further investigated the effectiveness of this process by using a photocatalytic film as a front-end treatment for a composite iron–carbon constructed wetland (PF&WIC) to restore a mildly eutrophic water body. The results showed NH4+-N, TN, TP, COD, and chlorophyll a removal rates using PF&WIC of 79.1 ± 6.6%, 76.8 ± 6.5%, 77.0 ± 5.4%, 77.3 ± 7.2%, and 91.7 ± 5.6%, respectively. The DO concentration of the water body increased compared with that of the effluent. The bacterial species and their abundance in the lake water also changed significantly, and photosynthetic autotrophic bacteria (Cyanobium PCC-6307) became the most dominant bacteria, and this played an important role in reoxygenating the water body. In comparing these results to those of our previous study, the removal of pollutants with PF&WIC was close to that with WIC&PF, but the reoxygenation effect of PF&WIC on the water body was significantly worse than that of WIC&PF; thus, WIC&PF is the more reasonable choice for treating eutrophic water bodies.

show abstract

Section: Microbial Community Analysismentioning

confidence: 99%

Study of a New Photocatalytic Film Process Combined with a Constructed Wetland and an Analysis of Reoxygenation Pathways in a Water Body

Chen,

Ye,

Chen

et al. 2024

Sustainability

View full text Add to dashboard Cite

show abstract

“…Then the pretreated wastewater is chemically or biochemically treated to further reduce the COD of the wastewater, in accordance with the emission standards. 18 The main focus of the traditional process is on whether the treated wastewater can be reused or accord with the emission standards, while there are relatively few studies on the green resource utilization of the large amounts of polyacrylate latex solid waste (PLSW) generated during the treatment process. For this type of solid waste, one study has shown that its overall degradation rate in the soil is less than 1% every six months.…”

Section: Introductionmentioning

confidence: 99%

“…In the traditional treatment process of polyacrylate latex wastewater, a large number of solid pollutants in the wastewater are removed mainly by a pretreatment method of flocculation and filtration. Then the pretreated wastewater is chemically or biochemically treated to further reduce the COD of the wastewater, in accordance with the emission standards . The main focus of the traditional process is on whether the treated wastewater can be reused or accord with the emission standards, while there are relatively few studies on the green resource utilization of the large amounts of polyacrylate latex solid waste (PLSW) generated during the treatment process.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Adsorbent Based on Polyacrylate Latex Solid Waste and Its Application in the Treatment of Dye Wastewater

et al. 2022

View full text Add to dashboard Cite

It is a great challenge to sustainably produce and apply water-based coatings and inks in terms of realizing the green resource utilization of polyacrylate latex solid waste (PLSW) and avoid its secondary pollution. In this paper, a kind of high value-added amphoteric ion-exchange resin (AIER) was prepared by using diethylenetriamine to amidate PLSW under the optimized conditions from a Box-Behnken design. Its adsorption and regeneration properties and the universality of the method were investigated. The results suggested that AIER possessed a high removal efficiency to anionic dyes, and the batch dye adsorption processes were endothermic and spontaneous, which is consistent with a pseudo-second-order kinetic model. The penetration adsorption capacities of AIER were recorded to be 987.08 mg/g for RR239 and 1037.75 mg/g for RB5 at the optimized operating conditions of column height = 6.4 cm, flow rate = 1 mL/min, and dye solution of 500 mg/L. They were more than 200 times larger than that of commercial activated carbon when the mixture composed of AIER particle and diatomite particle (filter aid agent) was used as a fixed-bed adsorbent. Zeta potential analysis results indicated that the good adsorption and regeneration performances of AIER were mainly attributed to the presence of amino and carboxyl groups in the molecular structure of AIER. Most importantly, this method possessed excellent practicability and universality for different types of PLSW from factory wastewater. The results provide a feasible method and theoretical basis for the green resource utilization of PLSW, and the goal of “waste control by waste” was fundamentally achieved.

show abstract

“…Various methods such as adsorption (Liu et al , 2020c; Liu et al , 2020d; Omer et al , 2021), biological treatment (Q. Song et al , 2021a), membrane filtration (Song et al , 2021b), photo-catalytic degradation (Shahzad et al , 2021) have been used to eliminate organic dyes from wastewater. Among the methods, adsorption is commonly accepted as one of effective, simple and economic methods.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of metal organic framework modified with carboxylated attapulgite and adsorption properties for organic dye

Zhang

et al. 2021

PRT

View full text Add to dashboard Cite

Purpose The purpose of this study was to prepare carboxylated attapulgite (APT-COOH) and then be used as one of the ligands to prepare metal organic framework (MOF) hybrid materials to reduce the cost of MOF materials and improve the dispersed condition of APT. And then the materials were used to enrich anionic dye Congo red from aqueous solution. Design/methodology/approach The MOF hybrid materials were designed by means of facile reflux method rather than hydrothermal method, characterized by Thermogravimetric Analysis (TGA), Fourier Transform Infrared (FTIR) Spectrometer and pore structure. The dispersed degree of APT-COOH in the MOF materials was validated according to adsorption efficiency for Congo red. Findings Due to introduction of APT-COOH, the microenvironment of the MOF materials changed, leading to different adsorption behaviors. Compared to the MOF material without APT-COOH, the adsorption capacities of the hybridized MOF materials with different amounts of APT-COOH introduced increased by 4.58% and 15.55%, respectively, as the initial concentration of Congo red solution of 300 mg/L. Meantime, hybridized MOF materials were suitable to remove Congo red with low concentration, while the MOF material without APT-COOH was appropriate to enrich Congo red with high concentration. Research limitations/implications The microstructure of MOF hybrid materials in detail is the further and future investigation. Practical implications This study will provide a method to reduce the cost of MOF materials and a theoretical support to treat anionic dyes from aqueous solution. Originality/value APT-COOH was prepared and used as one of the ligands to synthesize MOF material to improve the dispersed degree of APT-COOH and reduce the cost of the MOF materials. The adsorption efficiency was greatly enhanced with low concentration of Congo red solution, and the results indicated that hydrogen bonding, electrostatic interaction, and p-p conjugation were involved in the adsorption process. The prepared MOFs materials exhibited excellent adsorption efficiency, which made the present materials highly promising and potentially useful in practical application as adsorbents to enrich anionic dyes such as Congo red from aqueous solution.

show abstract

Efficient degradation of polyacrylate containing wastewater by combined anaerobic–aerobic fluidized bed bioreactors

Cited by 15 publications

References 31 publications

Study of a New Photocatalytic Film Process Combined with a Constructed Wetland and an Analysis of Reoxygenation Pathways in a Water Body

Study of a New Photocatalytic Film Process Combined with a Constructed Wetland and an Analysis of Reoxygenation Pathways in a Water Body

Preparation of Adsorbent Based on Polyacrylate Latex Solid Waste and Its Application in the Treatment of Dye Wastewater

Synthesis of metal organic framework modified with carboxylated attapulgite and adsorption properties for organic dye

Contact Info

Product

Resources

About