Removal of sulfamethazine antibiotics using cow manure-based carbon adsorbents

Abstract

Low-cost adsorbents, e.g., cow manure-based carbon, provide alternatives to remove veterinary antibiotic sulfamethazine (SMT) from contaminated water bodies. In this study, the chemical structures and compositions of cow manure (CM) carbonized at 400, 600, and 800°C (CM400, CM600, and CM800) were examined using elemental analyzer (EA), Brunauer-Emmett-Teller, and spectroscopic techniques. Adsorptions of SMT on CM samples were conducted as functions of pH, hydrophobicity, and ionic strengths. Results of EA and spectroscopic analyses suggested that the raw CM and CM400 samples contained the highest amounts of O-containing groups and aliphatic domains. Amounts of such two chemical groups decreased as carbonization temperatures increased. The specific surface areas and total pore volumes of CM samples increased significantly when the carbonization temperatures exceeded 600°C. SMT adsorption on CM samples could be described essentially by the pseudo-second-order kinetic, intra-particle diffusion, and Freundlich isotherm models. Low pH and ionic strength were favorable for SMT adsorption in CM samples, particularly for the CM800, because a strong p ? -p electron donor-acceptor interaction (p ? -p EDA) was formed between SMT and CM surfaces enriched with hydrophobic domains. Further, the high adsorption affinity of SMT to the CM600 and CM800 samples was attributed in part to their larger surface areas and total pore volumes. Generally, CM-based materials carbonized [600°C showed relatively stable structures and exhibited strong aromatic properties. Moreover, maximum adsorption capacities of SMT on the CM800 sample (37-39 mM/kg) were significantly higher than those of other common adsorbents (0.02-35.93 mM/kg).

Low-cost biochar derived from herbal residue: characterization and application for ciprofloxacin adsorption

“…The carbon content rose when the pyrolysis temperature increased, whereas the H and O contents decreased; further, the surface area increased with an increase in temperature (Tzeng et al 2016). Mui et al (2010) concluded that the bamboo biochar produced under the higher temperature had a better adsorption capacity for dye.…”

“…A large number of studies on pollutant removal focus on the use of biochar. Examples of recent research papers include the adsorption of heavy metals from wastewater (e.g., Cd, Cu, Pb, As) using sewage sludge waste or biomass biochar (Dubey et al 2014;Chen et al 2015;Wang et al 2015;Komkiene and Baltrenaite 2016), the adsorption of tetracycline and fluoroquinolone using rice husk biochar, wastewater sludge biochar or cow manure biochar (Yao et al 2013;Jing et al 2014;Tzeng et al 2016), the adsorption of pesticides by agricultural biomass biochar (Inyang and Dickenson 2015) and the adsorption of dye using plant waste biochar (Sun et al 2013). Using plant waste in biochar synthesis is preferable and sustainable because plant wastes such as agricultural residues are still underutilized, and a large portion of this biomass is discarded as waste (Loow et al 2015).…”

Evaluating changes in microbial population and earthworms weight during vermicomposting of cow manure containing co-trimoxazole

“…In veterinary medicine, antibiotics are being widely used to prevent and treat diseases and also to stimulate growth in animal husbandry [1,2]. Moreover, they are applied in livestock feeding for antibiotic resistance genes (ARGs) in hostdependent bacteria [3].…”

Phytotoxicity and Accumulation of Antibiotics in Water Lettuce (Pistia stratiotes) and Parrot Feather (Myriophyllum aquaticum) Plants under Hydroponic Culture Conditions

“…The adverse effects of these antibiotics are known to cause damage to developmental, cardiovascular, and metabolic systems, as well as in altering antioxidant and immune responses, in fishes. Therefore, there are continuous concerns about the toxicity of antibiotics in fishes and management strategies are needed [20][21][22].…”

“…strain 4N2-2 produces four metabolites (8-hydroxynorfloxacin, 6-defluoro-6-hydroxynorfloxacin, desethylene-norfloxacin, and N-acetylnorfloxacin) from norfloxacin [21], Streptomyces sp. strain AL-16012 produces five metabolites (chlorotetracycline, doxytetracycline, meclotetracycine, minotetracycline, and rolitetracycline) from tetracycline [20], and ammonia-oxidizing archaeon strain produces two metabolites (acetyl + hydroxy (AcOH-sulfonamide) and N4-formyl-sulfonamide) from sulfamethazine [22] through glycosylation, decarboxylation, hydroxylation, oxidative defluorination, desethylation, and N-acetylation. These metabolites, of course, may be subjected to further degradation by other environmental microorganisms.…”