Adsorptive removal of ciprofloxacin and sulfamethoxazole from aqueous matrices using sawdust and plastic waste-derived biochar: A sustainable fight against antibiotic resistance.

We produced carbon-negative biochar from the pyrolysis of sawdust biomass alone (SB) and from the co-pyrolysis of sawdust and plastic waste (SPB). The co-pyrolysis approach in this study was driven by several hypothetical factors, such as increased porosity, surface chemistry, stability, as well as waste management. We applied pyrolyzed and co-pyrolyzed biochars for the removal of ciprofloxacin (CFX) and sulfamethoxazole (SMX). Due to its more alkaline and amorphous nature, SB showed better removal efficiencies compared to SPB. The maximum removals of CFX and SMX with SB were observed as ∼95% and >95%, respectively whereas with SPB were 58.8%, and 34.9%, respectively. The primary mechanisms involved in the adsorption process were H-bonding, electrostatic and π-π electron donor-acceptor interactions. Homogenously and heterogeneously driven adsorption of both antibiotics followed the pseudo-second-order kinetic model, implying electron sharing/transfer (chemisorption) mediated adsorption. The work is highly pertinent in the context of emerging concerns related to drivers that promote antimicrobial resistance.

Assessment of Health-Related Quality of Life Among Male Patients With Controlled and Uncontrolled Hypertension in Semi Urban India.

The burden of hypertension has been growing over recent decades. In addition to risk of stroke and cardiovascular disease development, data indicates that hypertension may also pose a hazard to the quality of life (QoL) of individuals. Patient reported outcomes such as QoL are often overlooked, with physicians and healthcare professionals not routinely evaluating or customizing treatments according to QoL. In this study we aimed to assess the QoL of hypertensive men (n = 500) undergoing treatment who visited a charitable hospital in Pune, India. Clinic blood pressure was determined and the Mini Cuestionario de Calidad de Vida en Hipertensión Arterial (MINICHAL) scale was used to assess the health-related (HR)-QoL of patients. More than half of the participants (62%) had uncontrolled hypertension, with a mean systolic blood pressure (BP) of 151 ± 12 mmHg and diastolic blood pressure of 87 ± 6 mmHg as compared to those with controlled blood pressure (mean systolic blood pressure 123 ± 6 mmHg and diastolic blood pressure 84 ± 5 mmHg; P < .01 for both). Predominantly the participants were overweight with body mass index (BMI) of those with uncontrolled hypertension being greater than those with controlled blood pressure (28.4 ± 3.3 kg/m2 vs 23.3 ± 2 kg/m2, P < .01). A reduced QoL was observed for participants with uncontrolled hypertension (overall score 41 ± 5) as compared to those with controlled blood pressure (35 ± 4, P < .001). This was evident on both the mental plane [2.8 ± 2.5 (95% CI = 2.3-3.1) vs 4.1 ± 3.2 (95% CI = 2.5-3.3)] and somatic domain [3.4 ± 3.2 (95% CI = 3.0-4.0) vs 4.7.4 ± 3.5 (95% CI = 3.1-4.5)] where the QoL was poorer (P < .001) for the uncontrolled hypertensive group. Poorer QoL was observed for people with uncontrolled hypertension. This study indicates that the QoL in patients with uncontrolled hypertension attending an outpatient clinic in India is worse than those with controlled blood pressure. Future studies need to be undertaken to ascertain whether an impaired QoL impacts the outcomes associated with high blood pressure.

Screening of pharmaceutical and personal care products (PPCPs) along wastewater treatment system equipped with root zone treatment: A potential model for domestic waste leachate management.

We present the use of root zone treatment (RZT) based system for the removal of pharmaceutical and personal care products (PPCPs) from domestic wastewater. The occurrence of more than a dozen PPCPs were detected in an academic institution wastewater treatment plant (WWTP) at three specific locations, i.e., influent, root treatment zone, and effluents. The comparisons of observed compounds detected at various stages of WWTP suggest that the presence of PPCPs, like homatropine, cytisine, carbenoxolone, 4,2',4',6'-tetrahydroxychalcone, norpromazine, norethynodrel, fexofenadine, indinavir, dextroamphetamine, 3-hydroxymorphinan, phytosphingosine, octadecanedioic acid, meradimate, 1-hexadecanoyl-sn-glycerol, and 1-hexadecylamine, are unusual than the usual reported PPCPs in the WWTPs. In general, carbamazepine, ibuprofen, acetaminophen, trimethoprim, sulfamethoxazole, caffeine, triclocarban, and triclosan are often reported in wastewater systems. The normalized abundances of PPCPs range between 0.037-0.012, 0.108-0.009, and 0.208-0.005 in main influent, root zone effluent, and main effluents, respectively, of the WWTP. In addition, the removal rates of PPCPs were observed from -200.75% to ∼100% at RZT phase in the plant. Interestingly, we observed several PPCPs at later stages of treatment which were not detected in the influent of the WWTP. This is probably owing to the presence of conjugated metabolites of various PPCPs present in the influent, which subsequently got deconjugated to reform the parent compounds during the biological wastewater treatment. In addition, we suspect the potential release of earlier absorbed PPCPs in the system, which were absent on that particular day of sampling but have been part of earlier influents. In essence, RZT-based WWTP was found to be effective in removing the PPCPs and other organic contaminants in the study but results in stress the need for further comprehensive research on RZT system to conclude the exact removal efficacy and fate of PPCPs during treatment in the system. As a current research gap, the study also recommended RZT to be appraised for PPCPs in-situ remediation from landfill leachates, an underestimated source of PPCPs intrusion in the environment.