LAWMA Intensifies Efforts Against Indiscriminate Waste Disposal on Road Medians

The Lagos Waste Management Authority (LAWMA) has issued a stern warning to residents against the improper disposal of waste on road medians,...

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Bhopal Gas Tragedy: 40 Years After Unloading of Waste Starts in Dhar

THE PROCESS of unloading 337 tonnes of hazardous waste, transported from Bhopal-based defunct Union Carbide factory in container trucks, began at an incineration unit in Pithampur industrial area in Madhya Pradesh’s Dhar district on Thursday (13), an official said. He said the exercise, which began at around 3 pm by adhering to all safety norms,… <a class="more-link" href="https://www.indiaweekly.biz/bhopal-gas-tragedy-waste-disposal-dhar/">Continue reading <span class="screen-reader-text">40 years after Bhopal gas tragedy, unloading of waste starts in Dhar</span></a>

Union Carbide Waste: Video Shows ‘Black’ Water From Borewell; Officials Collect Samples

AMID apprehensions by locals over the proposed disposal of 337 tonnes of Union Carbide waste in Madhya Pradesh’s Dhar district, a video purportedly showing a borewell discharging “black” water surfaced on social media. To dispel any fear, the district administration visited the area near Pithampur town, about 30 km from Indore, where the waste has… <a class="more-link" href="https://www.indiaweekly.biz/union-carbide-waste-disposal-water-pollution/">Continue reading <span class="screen-reader-text">Union Carbide waste: Video shows ‘black’ water from borewell; officials collect samples</span></a>

Chennai residents embrace sustainable waste disposal ahead of Bhogi

Celebrate Bhogi in an eco-friendly way to reduce air pollution and promote responsible waste management in Chennai.

Efficient Waste Disposal with Reliable Dumpsters in Phoenix - Paminy

Waste collection involves proper utilization of dumpsters, and the best dumpster rental services in Phoenix are efficient for both businesses and

Shotgun metagenomic analysis reveals the diversity of PHA producer bacterial community and PHA synthase gene in Addis Ababa municipal solid waste disposal area ‘Qoshe’ - Annals of Microbiology

Background Polyhydroxyalkanoates (PHAs) are naturally produced biopolymers with significant scientific and biotechnological potential. This study aimed to investigate the diversity of the PHA-producing bacterial community and PhaC genes in soil samples collected from a municipal solid waste disposal site known as “Qoshe” in Addis Ababa, Ethiopia, using a shotgun metagenomics approach. The SqueezeMeta pipeline was used to analyze the microbial community in the waste samples. A CD search against the TIGRFAM protein family database was performed to identify the complete-length multidomain sequences of PhaC genes and classify them into their respective classes. Statistical analysis and data visualization were performed using RStudio with R version 4.2.3. Results The findings of this study suggest that known and unknown taxa likely contribute to the phaC genes of municipal solid waste. Taxonomic profiling of the metagenomic data revealed that the majority of the PHA-producing taxa belonged to the phylum Proteobacteria (80%), followed by Actinomycetota (16.5%). Furthermore, this study identified Thiomonas and unclassified Mycobacterium as the main contributors to class I PhaC genes. Class II PhaC genes are predominantly associated with the Pseudomonadaceae family, followed by unclassified Hyphomicrobials and Acidimicrobiales. Class III PhaC genes are abundantly related to the Methylococcaceae family, specifically the Methylocaldum genus. The analysis of PhaC gene sequences revealed high level of diversity, with a significant proportion of putative PhaC genes exhibiting low sequence identity with each other and PhaC gene in the database. Notably, the sequence variation observed within the same PhaC gene classes suggests the potential presence of previously unidentified PhaC gene variants. Conclusions Overall, this research improves our understanding of the diversity of PHA-producing taxa and PhaC genes in municipal solid waste environments, providing opportunities for sustainable PHA production and waste management strategies. However, additional studies, including the isolation and characterization of specific strains, are necessary to confirm the PHA production capabilities of these strains and explore their biotechnological potential.