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Heavy Metal Index

Cellulose Acetate Nanofiltration Membranes for Cadmium Remediation

Overview

Ounifi and colleagues evaluated cellulose acetate nanofiltration membranes for cadmium removal from model water. This is in-scope lane a2 remediation evidence and not food or salt occurrence evidence.

Key numbers

The introduction cites prior studies reporting cadmium concentrations up to 5 ppm in polluted water. The experiments tested feed concentrations from 10-4 to 10-2 mol.L-1 and transmembrane pressures from 2 to 14 bar.

The conclusion reports cadmium rejection up to 98% for the prepared cellulose-acetate nanofiltration membranes.

Methods (brief)

The study prepared cellulose acetate nanofiltration membranes and tested their hydraulic permeability and cadmium rejection under varying pressure, feed concentration, and ionic-strength conditions. Membrane performance and ion rejection were analyzed through the tables and discussion in the extracted PDF text.

Update history

The five most recent substantive edits to this page, classified major (evidence or structure moved), correction (a published value or statement was wrong and has been fixed), or minor (narrative rewritten without changing the underlying evidence). Each description is derived from what the edit did to this page; the linked commit is the authoritative record, routine regeneration passes are excluded, and the full version history lives in git. When DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.

CommitDateChangeDescription
3171d069e2026-08-02major1 section added
90a2f9a382026-07-30major1 section added and 1 removed; narrative text revised
50de6ab212026-07-27minorNarrative text revised
af9c97a502026-06-23major1 section added
7faea44b22026-06-11major5 sections added; narrative text revised