Refinery effluent streams routinely expose sensors to free oil, aromatics, and H2S concentrations that degrade elastomers within 6–12 months if wetted parts are not upgraded. Wastewater treatment spending across the refining sector is rising as effluent limits tighten and produced-water reuse mandates spread—a direction confirmed by every major market study of the sector, even though…
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,…
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…
Recirculating aquaculture systems are demanding customers. Every litre of water passes the same probes hundreds of times a day, biofilm never sleeps and downtime translates into fish deaths. In this environment sensor reliability is not a marketing claim, it is an operational currency. Multi-parameter probes are increasingly popular in RAS because they consolidate three or…
When the U.S. EPA finalized its PFAS National Primary Drinking Water Regulation, utilities ran into an unfamiliar problem: PFAS itself is measured by laboratory mass spectrometry, not by an online sensor. Yet PFAS compliance still generates a heavy continuous-sensor data burden, because EPA, state primacy agencies, and consulting engineers need to interpret PFAS results in…
Free chlorine residual is the single most heavily monitored parameter at U.S. drinking water utilities — and for good reason. A failed disinfection event can trigger boil-water advisories, regulatory penalties, customer trust damage, and operational chaos within hours. Continuous chlorine monitoring is the operational backbone that prevents these events. The Shanghai ChiMay residual chlorine transmitter…