Anonymized cases. DOI-verified.

Textile effluent screen: a 7.2× COD exceedance and a REJECT call, human-gated (illustrative)

A textile dyehouse asked whether its trade effluent clears Singapore PUB limits and whether to green-light a go-ahead. AquaMind V2 flagged three confirmed exceedances — COD at 7.2× the limit, TSS over 3×, and out-of-range pH — plus a wide block of undeclared metals, and returned a NON-COMPLIANT posture with a REJECT recommendation, mandatorily held for human sign-off as a food-safety/compliance call. Illustrative compliance screen on a fictional facility, not a legal determination.

Indoor RAS discharge screen: seven parameters, a PROCEED call, human-gated (illustrative)

A 600 t/yr indoor tilapia RAS asked a two-part question — does the effluent meet Singapore PUB Trade Effluent limits, and does the ROI support a go-ahead? AquaMind V2 screened all seven declared parameters as passing, computed the investment economics, and returned a PROCEED recommendation — flagged tier-5 and held for mandatory human sign-off before any business decision. Illustrative compliance screen on a fictional facility, not a legal determination.

Greenfield tilapia RAS: a sized, costed RAS + MBBR design in one pass (illustrative)

A greenfield 55 t/yr indoor tilapia brief — 550 m³, 110 kg/day feed, grid power, municipal discharge — went in; a route recommendation, unit sizing, a costed bill of materials and internal consistency checks came out. AquaMind V2 selected RAS + MBBR, sized the biofilter, aeration, pump and tankage from the computed nitrogen and oxygen loads, and self-verified that every sized unit maps to a BOM line. Illustrative sample on a fictional facility.

电镀废水连续超标：根因锁定破络失效，禁止盲目加药（示范案例）

某电镀废水处理站（破络→混凝→沉淀→中和）出水 COD 480 mg/L、总铜 2.8 mg/L 连续三周超标。AquaMind V2 由多个工艺专科高度一致地锁定核心根因为「破络环节失效」——更换破络药剂供应商后未按新药特性重新标定投加，导致络合态铜穿透并抬高 COD。方案要求先做小试验证、第三方加密取样与合规上报，破络效果确认前禁止盲目放大加药量。虚构园区示范案例。

高密度罗非鱼池条件性链球菌病：先纠水质、再凭药敏用药（示范案例）

一口高密度尼罗罗非鱼池日死亡率一周内由 0.3% 升至 1.9%，病鱼打转、突眼、体表出血。AquaMind V2 由疾病、水质、营养三专科交叉验证，判定为「高温＋高氨氮＋高亚硝酸盐＋边缘性低氧」驱动的条件性链球菌病急性暴发，给出 DOI 溯源的分级处置方案——先纠正水质并送检确诊，抗生素待药敏结果与兽医处方经专家签核后实施。虚构养殖场示范案例。

Barramundi nursery outbreak: why the plan says diagnose before you dose (illustrative)

A Lates calcarifer RAS nursery saw daily mortality climb from 0.4% to 2.1% in a week alongside ulcers, frayed fins and cotton-like patches. AquaMind V2 tied onset to a chiller fault and a grader run, then made the stewardship call explicit: stabilise water and temperature and take wet-mounts and cultures now — start no antibiotic, antifungal or antiparasitic until microscopy resolves the differential. DOI-grounded, expert-signed-off. Illustrative sample on a fictional facility.

Whiteleg shrimp RAS: nitrite spike traced to a hidden chlorine carry-over (illustrative)

An indoor Litopenaeus vannamei RAS watched nitrite climb from 0.1 to 4.1 mg/L in four days while feed was held flat. AquaMind V2 ruled out overfeeding and oxygen stall, isolated a compound biofilter collapse — a media swap stacked on a chlorine-treated make-up water batch — and returned a red-severity, DOI-grounded action plan with a 0–6 h response window, then escalated to a human expert for sign-off. Illustrative sample on a fictional facility.