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Record W4415926623 · doi:10.20885/jstl.vol16.iss1.art5

PENGOLAHAN LIMBAH CAIR LABORATORIUM DENGAN ADSORPSI SERTA PRETREATMENT NETRALISASI DAN KOAGULASI

2025· article· W4415926623 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueJurnal Sains &Teknologi Lingkungan · 2025
Typearticle
Language
FieldEnvironmental Science
TopicHeavy Metal Pollution Remediation
Canadian institutionsEncana (Canada)
Fundersnot available
KeywordsChloride

Abstract

fetched live from OpenAlex

Limbah cair laboratorium Teknik Lingkungan UNIPA Surabaya belum memenuhi baku mutu Peraturan Menteri Lingkungan Hidup Nomor 5 Tahun 2014, sehingga perlu diolah supaya tidak mencemari lingkungan. Penelitian ini bertujuan mengkaji pengaruh dosis koagulan Poly Alum Chloride (PAC) terhadap penurunan Pb, Cr, dan TDS, mengkaji kualitas air limbah setelah dinetralisasi, dikoagulasi dan diadsobsi terutama untuk parameter Pb, Cr, TDS, dan pH. Variabel penelitian ini adalah dosis PAC yaitu 150 mg/L, 225 mg/L dan 300 mg/L. Penelitian dilakukan dalam skala laboratorium dengan sistem kontinyu dengan aliran down flow. Media adsorpsi yang digunakan ijuk, sabut kelapa, karbon aktif ampas tebu dan zeolit yang disusun bertingkat dalam reaktor dari pipa PVC. Proses adsorpsi dilakukan selama 2 jam dan pengambilan sampel setiap 15 menit. Hasil dari penelitian ini menunjukan bahwa PAC 300 mg/L menghasilkan efisiensi penurunan tertinggi, yaitu TDS 13,7% Cr 97%, Pb 93,5%, dan kualitas limbah setelah dinetralisasi, dikoagulasi dan diadsorpsi pada menit ke-15 mempunyai kadar TDS 1.810 ppm, Cr total 0,36 ppm, Pb 0,66 ppm sehingga air limbah sudah memenuhi baku mutu sesuai dengan Peraturan Menteri Lingkungan Hidup No. 5 Tahun 2014 sedangkan pH sebesar 5,42 belum memenuhi baku mutu.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.002
metaresearch head score (Gemma)0.002
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies, Research integrity, Insufficient payload (model declined to judge)
Consensus categoriesMeta-epidemiology (narrow)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.279
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.002
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.003
Science and technology studies0.0020.001
Scholarly communication0.0010.001
Open science0.0020.001
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0000.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.012
GPT teacher head0.265
Teacher spread0.253 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it