{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,28]],"date-time":"2026-07-28T09:03:00Z","timestamp":1785229380339,"version":"3.55.0"},"reference-count":22,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2026,7,28]],"date-time":"2026-07-28T00:00:00Z","timestamp":1785196800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Nedtex Technology Company"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Membranes"],"abstract":"<jats:p>Reverse osmosis (RO) desalination operators time membrane clean-in-place (CIP) by non-site-calibrated vendor thresholds. We present an auditable workflow that converts these thresholds into plant-calibrated decision support. It pre-specifies the recovery target and analysis unit, compares candidate signals with a five-test label-free battery, and reports composite weights only when identifiable. Using \u2248two years of routine 10 min SCADA from one three-train island seawater RO plant (\u2248600 m3 d\u22121), the battery selects normalised feed channel differential pressure (DP_norm) for site-specific cleaning-recovery review. On the false discovery rate (FDR)-effective unit (n = 14 campaigns), recovery is marginal and not FDR-significant (mid-p Benjamini\u2013Hochberg q \u2248 0.141); DP_norm is therefore an operator-review signal, not an autonomous or FDR-confirmed trigger. The same battery invalidates a per-CIP-reset net driving pressure trigger as a clip-floor regression-to-the-mean artefact; it collapses under the pre-specified matched placebo and is reproduced by a fake-date null, a finding that is bounded to this plant and estimand, and not causal proof of a unique mechanism. The DP_norm of \u22651.20 review point is an exploratory, in-sample heuristic selected partly against the endogenous operator log, and its indexed economic comparison inherits that limitation. An identifiability-gated Bayesian power prior leaves the four-weight composite non-identifiable on this single-regime plant, pinning only the near-zero salt passage weight. The contribution is a bounded, estimand-based workflow that supports audit without replacing operators or the safety envelope.<\/jats:p>","DOI":"10.3390\/membranes16080257","type":"journal-article","created":{"date-parts":[[2026,7,28]],"date-time":"2026-07-28T07:55:41Z","timestamp":1785225341000},"page":"257","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Auditable Clean-in-Place Decision Support from Routine SWRO SCADA: Selecting Differential-Pressure Recovery and Falsifying a Per-CIP-Reset Trigger"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-5930-6432","authenticated-orcid":false,"given":"Yi Hsiang","family":"Su","sequence":"first","affiliation":[{"name":"Nedtex Technology Company, 5F, No. 112, Section 2, An Ho Road, Da\u2019an District, Taipei 106, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-8257-3406","authenticated-orcid":false,"given":"Fan Cheng","family":"Meng","sequence":"additional","affiliation":[{"name":"Nedtex Technology Company, 5F, No. 112, Section 2, An Ho Road, Da\u2019an District, Taipei 106, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-1698-5137","authenticated-orcid":false,"given":"Pieh Yu","family":"Chang","sequence":"additional","affiliation":[{"name":"Nedtex Technology Company, 5F, No. 112, Section 2, An Ho Road, Da\u2019an District, Taipei 106, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,7,28]]},"reference":[{"key":"ref_1","unstructured":"LG Chem (LG Water Solutions) (2025). Technical Service Bulletins (All-in-One); Public Ed., V2.4.1 TSB 113 \u201cMembrane Cleaning\u201d (p. 34: Clean When Normalized Permeate Flow \u221210%, Salt Passage +10%, or Feed\u2013Concentrate \u0394P +15% Since Start-Up or Last Cleaning; \u201cOne or More\u201d), LG Chem. Available online: https:\/\/www.lgwatersolutions.com\/wp-content\/uploads\/2025\/07\/113.-Membrane-Cleaning.pdf."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"199","DOI":"10.1016\/j.memsci.2019.05.043","article-title":"Impact of membrane biofouling in the sequential development of performance indicators: Feed channel pressure drop, permeability, and salt rejection","volume":"585","author":"Siebdrath","year":"2019","journal-title":"J. Membr. Sci."},{"key":"ref_3","unstructured":"DuPont Water Solutions (2026). FilmTecTM Reverse Osmosis Membranes Technical Manual, Form No. 45-D01504-en, Rev. 19, Cleaning and Data-Normalization Sections, DuPont. 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