Search results
Results from the WOW.Com Content Network
ISO 26684:2015 Intelligent transport systems (ITS) – Cooperative intersection signal information and violation warning systems (CIWS) – Performance requirements and test procedures ISO 26722:2014 Water treatment equipment for haemodialysis applications and related therapies
Public water systems (PWS) must conduct source water monitoring for cryptosporidium; Filtration systems for PWS with the highest levels of cryptosporidium; All unfiltered systems must inactivate cryptosporidium using disinfection technologies such as ozone, ultraviolet light, or chlorine dioxide.
Before the modern era, cryptography focused on message confidentiality (i.e., encryption)—conversion of messages from a comprehensible form into an incomprehensible one and back again at the other end, rendering it unreadable by interceptors or eavesdroppers without secret knowledge (namely the key needed for decryption of that message).
Since the systems are staged, the culture of the later stages can be acclimated to the slowly degraded materials. [8]: Ch 2 The discs consist of plastic sheets ranging from 2 to 4 m in diameter and are up to 10 mm thick. Several modules may be arranged in parallel and/or in series to meet the flow and treatment requirements.
Sedimentation (water treatment) Septic tank; Septic tank conversion [2] Sequencing batch reactor; Sewage treatment; Skimmer (machine) Slow sand filter; Stabilization pond; Supercritical water oxidation (SCWO) Thermal hydrolysis; Treatment pond; Trickle-bed reactor; Trickling filter; Ultrafiltration; Ultraviolet disinfection; Upflow anaerobic ...
Recirculating aquaculture systems (RAS) are used in home aquaria and for fish production where water exchange is limited and the use of biofiltration is required to reduce ammonia toxicity. [1] Other types of filtration and environmental control are often also necessary to maintain clean water and provide a suitable habitat for fish. [ 2 ]
(2) Oxygenated Treatment (OT) (3) Combine Water Treatment (CWT) are adopted to minimize corrosion. Thus it is very important and critical to monitor and control Dissolved oxygen and pH values in Feed water systems. The typical points in steam circuit where dissolved oxygen monitoring is required are . Condenser outlet, L.P. heaters, Economizer ...
Dalecarlia Water Treatment Plant, Washington, D.C. Water treatment is any process that improves the quality of water to make it appropriate for a specific end-use. The end use may be drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses, including being safely returned to the environment.