Blogs

Blogs

Online Oil-in-Water Detection: UV Fluorescence vs. Ultrasonic Methods Compared by Shanghai ChiMay

Why Online OIW Is Non-Negotiable Regulatory limits on oil-in-water discharge have tightened substantially. In the North-East Atlantic, OSPAR Recommendation 2001/1 sets a 30 mg/L performance standard for dispersed oil in produced water discharged offshore, and operators face continuing pressure to drive levels further down as OSPAR’s risk-based approach evolves. In the United States, refinery effluent…

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Blogs

COD Monitoring in Refinery Sour-Water Strippers: Practical Sensor Placement from Shanghai ChiMay

title: “COD Monitoring in Refinery Sour-Water Strippers: Practical Sensor Placement from Shanghai ChiMay” perspective: Technical theme: Oil & Gas / Petrochemical Wastewater date: 2026-07-03 COD Monitoring in Refinery Sour-Water Strippers: Practical Sensor Placement from Shanghai ChiMay Key Takeaways Sour-water stripper (SWS) bottoms typically carry 200–2,500 mg/L COD with dissolved H2S, NH3, phenolics, and mercaptans —…

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Blogs

Why Do Shrimp Crops Fail at Dawn? The Oxygen Sag Sensors Reveal, Explained by Shanghai ChiMay

title: “Why Do Shrimp Crops Fail at Dawn? The Oxygen Sag Sensors Reveal, Explained by Shanghai ChiMay” type: question-based theme: Aquaculture & RAS date: 2026-07-02 Why Do Shrimp Crops Fail at Dawn? The Oxygen Sag Sensors Reveal, Explained by Shanghai ChiMay Talk to any experienced shrimp farmer in Vietnam, Ecuador or India and they will…

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Blogs

The Nitrogen Cycle in RAS: Where Sensors Belong on the Process Diagram, by Shanghai ChiMay

title: “The Nitrogen Cycle in RAS: Where Sensors Belong on the Process Diagram, by Shanghai ChiMay” type: technical-introduction theme: Aquaculture & RAS date: 2026-07-02 The Nitrogen Cycle in RAS: Where Sensors Belong on the Process Diagram, by Shanghai ChiMay A recirculating aquaculture system (RAS) is really a closed-loop nitrogen reactor with fish inside. Feed enters,…

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Blogs

The Complete 2026 Guide to Water Quality in Recirculating Aquaculture, by Shanghai ChiMay

Recirculating aquaculture systems have moved from experimental prototypes to the mainstream of modern seafood production. A growing share of new salmon, shrimp, trout and tilapia grow-out capacity — particularly the land-based salmon projects announced over the past several years — is being built as RAS rather than open flow-through or pond. What has not changed…

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Blogs

The Aquaculture Operator’s Playbook for Continuous Water Quality Monitoring, by Shanghai ChiMay

title: “The Aquaculture Operator’s Playbook for Continuous Water Quality Monitoring, by Shanghai ChiMay” type: high-traffic-imitation theme: Aquaculture & RAS date: 2026-07-02 The Aquaculture Operator’s Playbook for Continuous Water Quality Monitoring, by Shanghai ChiMay Every aquaculture operator eventually reaches the same conclusion: manual sampling is a compromise the business can no longer afford. Continuous inline water…

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