{"id":"W2093977109","doi":"10.2166/wst.2006.402","title":"Chemical phosphorus removal to extremely low levels: experience of two plants in the Washington, DC area","year":2006,"lang":"en","type":"article","venue":"Water Science & Technology","topic":"Phosphorus and nutrient management","field":"Environmental Science","cited_by":55,"is_retracted":false,"has_abstract":true,"ca_institutions":"Wilfrid Laurier University; EnviroSim (Canada)","funders":"","keywords":"Phosphorus; Effluent; Phosphate; Ferric; Chemistry; Hydroxide; Adsorption; Precipitation; Sorbent; Ferrous; Wastewater; Sewage treatment; Inorganic chemistry; Environmental chemistry; Environmental engineering; Environmental science; Organic chemistry","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0007489889,0.0001761154,0.0001915502,0.0002742294,0.0001641289,0.00004752312,0.002180078,0.00007511961,0.0001333075],"category_scores_gemma":[0.00003764454,0.0001092377,0.00003456015,0.001699705,0.00152139,0.0002764279,0.001037694,0.0001706802,0.0001470011],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001990165,"about_ca_system_score_gemma":0.00001302279,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0008064813,"about_ca_topic_score_gemma":0.0001143019,"domain_scores_codex":[0.9975091,0.0000169778,0.0003491331,0.0006529907,0.0006931995,0.000778591],"domain_scores_gemma":[0.9991719,0.0000154883,0.00006507809,0.0006761194,0.00001302184,0.00005837717],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.00002675594,0.0002360256,0.03918882,0.000002615276,0.000001085405,0.00008420742,0.002804885,0.0003987756,0.9475043,0.001670937,0.0006066978,0.007474883],"study_design_scores_gemma":[0.0002837657,0.00005938434,0.008062942,0.00001970765,0.000002299724,0.00003998223,0.0005705239,0.0003136084,0.9740416,0.004558374,0.01185521,0.0001925858],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9931112,0.00004060868,0.000444333,0.001402834,0.0001169777,0.0003134737,0.000002928237,0.00006198419,0.004505648],"genre_scores_gemma":[0.9979319,0.000006392439,0.001515381,0.0002974013,0.000009962801,0.0000565021,0.000001198866,0.000007220421,0.0001740494],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.03112588,"threshold_uncertainty_score":0.5605626,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01360266447281832,"score_gpt":0.2328179599439317,"score_spread":0.2192152954711134,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}