Electrochemical removal of crystal violet dye from simulated wastewater by stainless steel rotating cylinder anode: COD reduction and decolorization

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: unknown, P. 100787 - 100787

Published: Sept. 1, 2024

Language: Английский

---

Plasmid-mediated quinolone resistance among extended-spectrum β-lactamase-producing Escherichia coli and Klebsiella pneumoniae isolated from hospitalized patients, hospital environment and wastewaters in Cameroon

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

Introduction Extended-spectrum β-lactamase-producing Escherichia coli (ESBL-Ec) and Klebsiella pneumoniae (ESBL-Kp) are among the leading cause of hospital-acquired infections globally. Fluoroquinolone-resistant ESBL-Ec ESBL-Kp have limited therapeutic options. This study investigated phenotypic genotypic characteristics plasmid-mediated quinolone resistance (PMQR) genes in circulating hospitalized patients, hospital environment, wastewaters Cameroon. Method A cross-sectional was conducted, from February to June 2024 two healthcare facilities Yaoundé, Clinical, inanimate surfaces wastewater samples were collected. Bacteria identification done using API20E kit. The ESBL phenotype detected double-disk synergy test on CHROMagar™ ESBL. Antimicrobial susceptibility testing performed disc diffusion method. Genes conferring β-lactams fluoroquinolones polymerase chain reaction (PCR). Clonal relatedness assessed enterobacterial repetitive intergenic consensus (ERIC)-PCR. Results overall prevalence across all sources 16% (103/652). 10% (49/495) 27% (38/141) environment 100% (16/16) wastewaters. Nearly (99.5%) multidrug-resistant. bla_CTX−M most prevalent β-lactamase gene with ranging 74 85%. main aac-(6’)-Ib varying 57 70%. circulation between both three interfaces as well within evidenced. Conclusion Our results underscore crucial need implement real-time surveillance monitoring antimicrobial stewardship programs curb responsible neonatal sepsis neonatology unit Finally, genomic through One Health approach is needed fully understand transmission dynamics resistant bacteria

Language: Английский

---

Inadequate wastewater management in Dhaka’s major hospitals: A socio-technical systems analysis of leadership, policy, and technological challenges

PLOS Water, Journal Year: 2025, Volume and Issue: 4(1), P. e0000270 - e0000270

Published: Jan. 8, 2025

Unsafe hospital wastewater (HWW) is a significant concern, especially in low-and middle-income countries (LMICs) where the health impact often underreported. Socio-technical systems (STS) theory, which examines interplay between social and technical elements within complex systems, widely used developed but rarely applied LMIC hospitals. STS theory was employed to evaluate aspects of HWW treatment management Dhaka City, alongside comprehensive assessment WWT processes. A mixed-methods approach used, combining quantitative (structured observations) qualitative interviews. Structured observations assessed availability functionality selected The fieldworkers conducted 30 key-informant interviews across 13 hospitals, including 21 respondents from government nine private were cleaners, key professionals, public works department (PWD) engineers. We also analyzed relevant reports policies. Among hospitals surveyed, 10 had some form system, while remaining three lacked any infrastructure. Of those with WWT, seven utilized anaerobic baffled reactors septic tanks. Interviews revealed that authorities prioritize patient care medical equipment maintenance over limited understanding among staff regarding WWT. PWD-engineers reported frequent shortages bureaucratic delays, affecting efficiency system repairs desludging. Our study identified gaps use adequate technologies, poor knowledge, many disrepair, leading hazardous liquid being discharged directly into environment. highlighted need for policy formulation regulation, leadership, financing, assistance, capacity building. Addressing these issues comprehensively can lead safer more sustainable practices HCFs, ultimately benefiting

Language: Английский

---

Pharmaceutical Waste Reduction in Hospitals: The Impact of Segregation Practices and Regulatory Compliance

Published: Jan. 1, 2025

Language: Английский

---

Fighting Antibiotic Resistance: Insights Into Human Barriers and New Opportunities

BioEssays, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

The public health issue of bacterial multi-resistance to antibiotics has gained awareness among the public, researchers, and pharmaceutical sector. Nevertheless, spread antimicrobial resistance been considerably aggravated by human activities, climate change, subsequent increased release antibiotics, drug-resistant bacteria, antibiotic genes in environment. extensive use for medical veterinary purposes not only induced increasing but also other problems, including negative effects on patient's microbiome. Preventive strategies, new treatment modalities, surveillance are progressively set up. A comprehensive approach is, however, lacking urgently tackling this adverse situation. To address challenge, we discussed here main causes driving pollution environment factors favorable emergence drug resistance. We next propose some key priorities research, prevention, surveillance, education supervise an effective clinical sustainable response.

Language: Английский

---

Analysis of the effects, existing problems and flexible management suggestions in hospital wastewater treatment: A systematic perspective

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 72, P. 107565 - 107565

Published: April 1, 2025

Language: Английский

---

Antibiotic resistance in hospital wastewater in West Africa: a systematic review and meta-analysis

BMC Public Health, Journal Year: 2025, Volume and Issue: 25(1)

Published: April 11, 2025

Language: Английский

---

On-Site Inactivation for Disinfection of Antibiotic-Resistant Bacteria in Hospital Effluent by UV and UV-LED

Antibiotics, Journal Year: 2024, Volume and Issue: 13(8), P. 711 - 711

Published: July 29, 2024

The problem of antimicrobial resistance (AMR) is not limited to the medical field but also becoming prevalent on a global scale in environmental field. Environmental water pollution caused by discharge wastewater into aquatic environments has concern context sustainable development modern society. However, there have been few studies focused treatment hospital wastewater, and potential consequences this remain unknown. This study evaluated efficacy inactivation antimicrobial-resistant bacteria (AMRB) genes (AMRGs) model plant (WWTP) effluent based direct ultraviolet (UV) light irradiation provided conventional mercury lamp with peak wavelength 254 nm an light-emitting diode (UV-LED) emission 280 under test conditions which irradiance both was adjusted same intensity. overall results indicated that UV- UV-LED-mediated disinfection effectively inactivated AMRB types (>99.9% after 1-3 min UV 3 UV-LED treatment). Additionally, AMRGs were removed (0.2-1.4 log

Language: Английский

---

Inadequate wastewater management in Dhaka's major hospitals: A Socio-Technical Systems (STS) analysis of leadership, policy, and technological challenges

EarthArXiv (California Digital Library), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 6, 2024

Unsafe hospital wastewater is a significant concern, especially in low- and middle-income countries (LMICs) where the health impact often underreported. Socio-technical systems (STS) theory, which examines interplay between social technical elements within complex systems, widely used developed but rarely applied LMIC hospitals. We employed STS theory to evaluate aspects of treatment (WWT) management Dhaka City, alongside comprehensive assessment WWT processes. mixed-methods approach, combining quantitative (structured-observations) qualitative interviews. Structured observations assessed availability functionality selected conducted 30 key-informant interviews across 13 hospitals, including 21 respondents from government nine private The were cleaners, key professionals, public works department (PWD) engineers. also analyzed relevant reports policies. Among hospitals surveyed, 10 had some form system, while remaining three lacked any infrastructure. Of those with WWT, seven utilized anaerobic baffled reactors septic tanks. Interviews revealed that authorities prioritize patient care medical equipment maintenance over limited understanding among staff regarding WWT. PWD-engineers reported frequent shortages bureaucratic delays, affecting efficiency system repairs desludging. Our study identified gaps use adequate technologies, poor knowledge, many disrepair, leading hazardous liquid being discharged directly into environment. approach highlighted need for policy formulation HWW regulation, leadership, financing, assistance, capacity building. Addressing these issues comprehensively can lead safer more sustainable practices healthcare facilities, ultimately benefiting

Language: Английский

---

Characterization of Wastewater and Detection of Ceftriaxone at Tirunesh Beijing General Hospital, Addis Ababa, Ethiopia

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 3, 2024

This study was assessed the physicochemical characteristics of wastewater discharged from Tirunesh Beijing General Hospital, Addis Ababa, Ethiopia. The results were evaluated concerning compliance with standards set by Ethiopian Environmental Protection Agency. showed that significant deviations EEPA. Especially, pH value within accepted range at 7.05 ± 0.19, while EC a very high 1.576 0.0043 µS/cm exceeded standard 1 µS/cm. Total nitrogen (TN) (0.1295 0.0041 mg/L), and total phosphorus (TP) (0.46744 mg/L) which below limit. However, BOD COD values their limits 12.7 0.56 mg/L 138.677 3.955 mg/L, respectively. Analysis for heavy metals also lead (0.1134 chromium (0.07833 cadmium (0.03191 above EPA limits. Ceftriaxone concentrations on another hand (0.083 µg/mL) discharge limit 0.03 µg/L. These emphasize need treatment system Hospital to minimize environmental pollution protect public health. relatively levels detected contaminants pose great risks like development antibiotic resistance bacteria genes affect both aquatic life human

Language: Английский

---