#Eggshells from agro-industrial waste for the recovery of #lime, #portlandite, and #calcite nanoparticles through the lime cycle: A circular economic approach

Highlights:

• The study proposes to obtain calcite (#CaCO3) from eggshell agro-industrial waste within a circular economy approach.
• The lime cycle can be used to transform calcite (CaCO3) into lime (CaO) or portlandite (Ca(OH)2).
• Eggshells contain trace elements that can aid in synthesizing materials for #EnvironmentalRemediation..

"Eggshells from agro-industrial waste can be used as natural source to obtain nanometric CaCO3, CaO, and Ca(OH)2 using the lime cycle. The nanometric size and the phase identification of all samples were confirmed by X-ray diffraction and FWHM. The SEM images show that CaCO3, CaO, and Ca(OH)2 from eggshells are microparticles in the form of nanocrystals, which correlate with the DLS results. The Zeta Potential varies due to the loss of CO2 when CaCO3 is converted in CaO, and for this reason, the CaO is more negative. When CaO is hydrated, the Ca(OH)2 is more stable, and these differences can be attributed to the mineral content in the samples. Eggshells naturally have different trace minerals that maintain a long calcium cycle and show variation due to a concentration effect when the CaCO3 changes to CaO. There is a notable a decrease of the trace minerals when CaO. When CaO is converted to Ca(OH)2, there is a significant decrease in trace minerals as some ions are soluble in the water during soaking. It is recommended to carry out the conversion of CaO to Ca(OH)2 under controlled conditions (low humidity and CO2). These findings can be useful to treat #AgroIndustrial waste and to develop nanotechnological applications in different fields."

Full article:
https://www.sciencedirect.com/science/article/pii/S2949839224000166

#SolarPunkSunday #CircularEconomy #ZeroWaste #NewTechnology #Remediation

🎙️ The #FIRSTImpressionsPodcast is back for the 2026 conference season!
Tune in to the newest episode at: https://media.first.org/podcasts/FIRST_Impressions-MorLior.mp3

In this episode, podcasters interview Mor Weinberger and Lior Kaplan to preview their #FIRSTCON26 session: “From Discovery to Fix: What 10,000 Open Source Projects Reveal About CVE Remediation”

The conversation dives into:
🔹 Why 90% of #CVEs already have fixes available
🔹 Why #remediation still takes months
🔹 How AI is accelerating vulnerability discovery
🔹 The hidden complexity of open source supply chains
🔹 Practical ways organizations can reduce risk today

New episodes drop every Friday leading up to FIRSTCON, featuring previews of conference talks and conversations with presenters across the global incident response community.

📍FIRST Conference 2026
June 14–19 | Denver, Colorado

Secure your seat today: https://www.first.org/conference/2026/registration

#FIRSTCON26 #CyberSecurity #OpenSource #VulnerabilityManagement #CVE #DevSecOps #SupplyChainSecurity

A new study finds that perfluoroalkyl substances (PFAS) can be degraded, albeit slowly, by hydrogen radicals in the water following irradiation with ultraviolet light with wavelengths shorter than 300 nm.

Summary: https://scitechdaily.com/scientists-just-found-a-surprising-way-to-destroy-forever-chemicals/

Original paper (not open access): https://pubs.acs.org/doi/10.1021/acs.est.5c16178

#Science #Pollution #PFAS #Remediation

Exposure Management Platforms Face Validation Test

Are you tired of filling dashboards with green and closing hundreds of tickets, only to wonder if your organization is truly safer? The harsh reality is that most exposure management platforms fall short in connecting remediation to real risk reduction.

https://osintsights.com/exposure-management-platforms-face-validation-test?utm_source=mastodon&utm_medium=social

#ExposureManagement #VulnerabilityManagement #Cves #RiskReduction #Remediation

Too many alerts. Not enough clarity.
Our 30-Day AI Remediation Playbook helps teams prioritize real risk and remediate faster.

👉 https://go.xygeni.io/30-day-ai-remediation-playbook-prioritize-real-risk-faster?utm_source=mastodon&utm_medium=social&utm_campaign=30_day_ai_remediation_playbook&utm_content=organic_post

#AppSec #DevSecOps #AI #Remediation

🍊 How 12,000 Tonnes of Dumped Orange Peel Grew Into a Landscape Nobody Expected to Find

https://www.sciencealert.com/how-12-000-tonnes-of-dumped-orange-peel-produced-something-nobody-imagined

#costarica #environment #ecology #climatechange #remediation #waste #circulareconomy #centralamerica