A feasible biochar derived from biogas residue and its application in the efficient adsorption of tetracycline from an aqueous solution.
TL;DR: In this paper, a green and feasible reagent of citric acid was introduced and applied in the modification of biogas residue biochar (BRC), which showed a superior adsorption ability due to its higher specific surface area.
About: This article is published in Environmental Research.The article was published on 2021-10-04. It has received 27 citations till now. The article focuses on the topics: Biochar & Adsorption.
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TL;DR: In this paper, an activated carbon (ENAC) was prepared by NaOH activation, using macroalgae (Enteromorpha clathrate) as raw material, and the results indicated that the prepared ENAC had a great application prospect in the removal of antibiotics from aqueous solution.
93 citations
TL;DR: In this paper , the application of biochar in the removal of drugs (tetracycline (TC), sulfamethoxazole (SMX), acetaminophen (ACT), cephalexin (CPX), levofloxacin (LEV), etc.) through adsorption and persulfate-based AOPs was reviewed.
Abstract: Increasing quantities of pharmaceutical pollutants have been found in aquatic ecosystems. The treatment of pharmaceutical pollutants has been a major task that people have been committed to in recent years. The removal of pharmaceutical pollutants can be achieved by adsorption and advanced oxidation processes (AOPs). Compared with other carbon materials, biochar has a strong adsorption capacity and persulfate activation ability, and more importantly, biochar is cheap and easy to obtain; thus, it has higher economic benefits. This study firstly reviews the application of biochar in the removal of drugs (tetracycline (TC), sulfamethoxazole (SMX), acetaminophen (ACT), cephalexin (CPX), levofloxacin (LEV), etc.) through adsorption and persulfate-based AOPs. In addition, we summarize the adsorption mechanism of biochar for various pharmaceutical pollutants and the main attack sites on different pharmaceutical pollutants in persulfate-based AOPs catalyzed by biochar. Finally, the challenges and prospects of biochar with respect to the removal of pharmaceutical pollutants are put forward.
41 citations
TL;DR: In this paper , a bibliometric and technical study of anaerobic digestion for biogas production from sewage sludge in the last ten years, based on Web of Science data is presented.
16 citations
TL;DR: In this paper , a thermophilic bacterial agent (TBA) was inoculated onto biogas residue with a high moisture content (i.e., 90.4%). TBA accounted for 78.7% of the water loss rate in BR, dramatically higher than the effects of aeration, external heat, or indigenous microorganisms.
15 citations
TL;DR: In this paper , the effect of multistage inoculation on the co-composting performance of food waste and biogas residue was explored, and compared to the single-stage inoculation and non-inoculation groups, the multi-stage immunization pattern prolonged the thermophilic period during composting, consequently improving organic matter decomposition and humification.
12 citations
References
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15 Feb 2012
TL;DR: Graphene oxide is a potential effective absorbent for tetracycline antibiotics and can be used to remove them from aqueous solution and has a better rate constant of sorption, 0.065 g mg(-1) h(-1), than other adsorbents.
Abstract: Significant concerns have been raised over pollution of antibiotics including tetracyclines in aquatic environments in recent years. Graphene oxide (GO) is a potential effective absorbent for tetracycline antibiotics and can be used to remove them from aqueous solution. Tetracycline strongly deposited on the GO surface via π-π interaction and cation-π bonding. The adsorption isotherm fits Langmuir and Temkin models well, and the theoretical maximum of adsorption capacity calculated by Langmuir model is 313 mg g(-1), which is approximately in a close agreement with the measured data. The kinetics of adsorption fits pseudo-second-order model perfectly, and it has a better rate constant of sorption (k), 0.065 g mg(-1) h(-1), than other adsorbents. The adsorption capacities of tetracycline on GO decreased with the increase in pH or Na(+) concentration. The adsorption isotherms of oxytetracycline and doxycycline on GO were discussed and compared.
1,164 citations
TL;DR: In this paper, a low cost adsorbent (RH) was applied for Rhodamine B (RhB) uptake from aqueous solution, and the results showed that RH is about 1143 times more economical when compared with commercial activated carbon.
393 citations
TL;DR: In this paper, a commercially available activated carbon was modified with 1.0 M citric acid to improve copper ion adsorption from aqueous solutions and the results showed that the surface modification reduced the specific surface area by 34% and point of zero charge (pHpzc) of the carbon by 0.5 units.
354 citations
TL;DR: In this paper, a review of biochar modification methods for removing emerging contaminants (ECs) from water by modified biochar is presented. And the main research directions and trends, as well as recommendations and suggestions for future development are pointed out.
279 citations
TL;DR: In this paper, microcrystalline cellulose (MCC) was prepared from rice and bean hulls (RH and BH) using hydrochloric or sulfuric acid to study the effect of acid used on the properties of the produced MCC.
256 citations