Integrated photocatalysis and moving bed biofilm reactor (MBBR) for treating conventional and emerging organic pollutants from synthetic wastewater: Performances and microbial community responses

Liu, Qidi; Hou, Jun; Zeng, Yuan; Xia, Jun; Miao, Lingzhan; Wu, Jun

doi:10.1016/j.biortech.2022.128530

Cited by 16 publications

(4 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, with the photo-Fenton-like process, the phenol removal was found to be 99%. Liu et al (2023) [119] explored the integration of photocatalysis with MBBR for treating emerging organic pollutants and attained a COD removal of 80.7%. Ali et al (2023) [120] studied the efficiency of treating pharmaceutical wastewater containing acetylsalicylic acid, and it was observed that by using this integrated system, 99.7% of the acetylsalicylic acid was removed with a high quality of treated water.…”

Section: Coupling Of the Advanced Oxidation Process And The Biologica...mentioning

confidence: 99%

Challenges and Emerging Trends in Advanced Oxidation Technologies and Integration of Advanced Oxidation Processes with Biological Processes for Wastewater Treatment

Gopalakrishnan¹,

Banu

Adishkumar

2023

Sustainability

View full text Add to dashboard Cite

One of the biggest problems the world is currently experiencing is wastewater treatment. Numerous pollutants are released into water bodies by enormous amounts of effluents from varied sources. This paper provides a concise summary of the state of the art in AOPs, biological treatment, and their efficient application for the degradation of the numerous recalcitrant organic contaminants found in wastewater. The employment of a photoreactor is necessary for the efficient execution of the majority of photocatalytic processes. This review examines the effectiveness of several reactor configurations with varying geometries. Integrating different AOPs and AOPs with biological approaches for degrading pollutants in wastewater was also discussed. It is important to emphasize that an integrated AOP/biological system produces by-products that are not hazardous, uses little energy, and completely degrades pollutants. The review also outlines the challenges and issues of wastewater treatment for an environmentally and economically feasible process.

show abstract

Section: Coupling Of the Advanced Oxidation Process And The Biologica...mentioning

confidence: 99%

Challenges and Emerging Trends in Advanced Oxidation Technologies and Integration of Advanced Oxidation Processes with Biological Processes for Wastewater Treatment

Gopalakrishnan¹,

Banu

Adishkumar

2023

Sustainability

View full text Add to dashboard Cite

show abstract

“…Hence, an accumulative antibiotic uptake in the body due to its presence in water should be prevented. In addition, antibiotics might impact the bacterial colonies in the wastewater system, and the activity of bacteria is hindered when antibiotics are present in wastewater treatment systems, substantially impairing the procedure of treatment and breakdown of organic matter 9 , 10 . Should antibiotics remain present in wastewater due to ineffective treatment, there is a possibility that they will seep into surface water reservoirs, impacting various organisms within the food chain 11 .…”

Section: Introductionmentioning

confidence: 99%

Mechanisms and factors affecting the removal of minocycline from aqueous solutions using graphene-modified resorcinol formaldehyde aerogels

Yazdanbakhsh,

Behzadi,

Moghaddam

et al. 2023

Sci Rep

View full text Add to dashboard Cite

In recent years, concerns about the presence of pharmaceutical compounds in wastewater have increased. Various types of residues of tetracycline family antibiotic compounds, which are widely used, are found in environmental waters in relatively low and persistent concentrations, adversely affecting human health and the environment. In this study, a resorcinol formaldehyde (RF) aerogel was prepared using the sol–gel method at resorcinol/catalyst ratio of 400 and resorcinol/water ratio of 2 and drying at ambient pressure for removing antibiotics like minocycline. Next, RF aerogel was modified with graphene and to increase the specific surface area and porosity of the modified sample and to form the graphene plates without compromising the interconnected porous three-dimensional structure of the aerogel. Also, the pores were designed according to the size of the minocycline particles on the meso- and macro-scale, which bestowed the modified sample the ability to remove a significant amount of the minocycline antibiotic from the aqueous solution. The removal percentage of the antibiotic obtained by UV–vis spectroscopy. Ultimately, the performance of prepared aerogels was investigated under various conditions, including adsorbent doses (4–10 mg), solution pHs (2–12), contact times of the adsorbent with the adsorbate (3–24 h), and initial concentration of antibiotic (40–100 mg/l). The results from the BET test demonstrated that the surface area of the resorcinol formaldehyde aerogel sample, which included 1 wt% graphene (RF-G1), exhibited an augmentation in comparison to the surface area of the pure aerogel. Additionally, it was noted that the removal percentage of minocycline antibiotic for both the unmodified and altered samples was 71.6% and 92.1% at the optimal pH values of 4 and 6, respectively. The adsorption capacity of pure and modified aerogel for the minocycline antibiotic was 358 and 460.5 mg/g, respectively. The adsorption data for the modified aerogel was studied by the pseudo-second-order model and the results obtained from the samples for antibiotic adsorption with this model revealed a favorable fit, which indicated that the chemical adsorption in the rapid adsorption of the antibiotic by the modified aerogel had occurred.

show abstract

“…The applicability of HDPE as a biomass entrapment material in water treatment was demonstrated by [18] using the HDPE mesh. Some carriers like the polyurethane sponge cube are made of porous foam and belong to plastic variants [19]. [20] performed an experiment using a hybrid-structure novel carrier.…”

Section: Introductionmentioning

confidence: 99%

“…[28] investigated the achievement of high-level carbon and nitrogen removal capabilities of a basalt fiber carrier medium made of BF bundles and bionest for wastewater treatment. Meanwhile, [19] investigated the performance of superhydrophobic cotton fabric against Staphylococcus aureus and Escherichia coli in terms of durability, oil/water separation, self-cleaning, and antibacterial characteristic. The most common applications are nonwoven fabrics (i.e., geotextile filters) used for flowing and stagnating wastewater [29], nonwoven ring carriers as part of the Annamox fix bed reactor [30], and honeycomb-like carriers enwrapped in nonwoven fibers [31].…”

Section: Introductionmentioning

confidence: 99%

Development of Warp Knitted-Based Filtration Media

Lenfeldová,

Ryvolová,

Kdýrová

2023

Preprint

View full text Add to dashboard Cite

Biological wastewater treatment based on the removal of various nitrogen forms using activated sludge is a highly efficient and economical method with environmental benefits. The activated sludge comprises bacteria that form colonies on solid carriers (e.g., the most commonly used carrier, AnoxKaldnes). The initial concept behind designing a warp knitted fabric structure (i.e., spacer fabric) with holes is based on the appearance similarity of a three-dimensional fabric and a solid carrier, focusing on potential industrial production. In this study, the longitudinal textile properties of multi- and monofilament materials are measured. A structural analysis is conducted to produce samples unraveled and separated by mono and multifilaments. Density, weight, loop length, filament consumption, specific surface area, and effective area are calculated. Through a basic experiment in a laboratory nitrification reactor, a biofilm is formed on the carriers. The analysis results of the O2 consumption rate of individual design variants reveals minimal differences after 6 and 14 weeks. The efficient carrier area on the outer and inner front and back sides of four developed carrier variants is measured after cutting the monofilaments with the image analysis support. This study might be helpful in designing other textile-based carriers. The warp knitted carrier presented herein demonstrates the capture and presence of an active biofilm evidenced by a higher oxygen consumption rate of up to 8 mg/L/h in 6 weeks. It also shows the benefit of commercially available warp knitted carrier manufacturing.

show abstract

Integrated photocatalysis and moving bed biofilm reactor (MBBR) for treating conventional and emerging organic pollutants from synthetic wastewater: Performances and microbial community responses

Cited by 16 publications

References 39 publications

Challenges and Emerging Trends in Advanced Oxidation Technologies and Integration of Advanced Oxidation Processes with Biological Processes for Wastewater Treatment

Challenges and Emerging Trends in Advanced Oxidation Technologies and Integration of Advanced Oxidation Processes with Biological Processes for Wastewater Treatment

Mechanisms and factors affecting the removal of minocycline from aqueous solutions using graphene-modified resorcinol formaldehyde aerogels

Development of Warp Knitted-Based Filtration Media

Contact Info

Product

Resources

About