Neptunium control in co-decontamination step of purex process

Improvements of Np Extraction Simulation 1 Simulation of Neptunium Extraction in an Advanced PUREX Process — Model Improvement

Routing neptunium to a single product in spent nuclear fuel reprocessing is a significant challenge. In this work, we have further improved the simulation of neptunium extraction in an advanced PUREX flowsheet by applying a revised model of the Np(V)-Np(VI) redox reaction kinetics, a new nitric acid radiolysis model and by evaluating various models for the nitrous acid distribution coefficient....

A Step by Step Approach to Advanced Process Control

Model-based advanced process control strategies are common applications in the hydrocarbon processing industry. A close look at the references available in literature reveals that the overwhelming majority of these projects are concentrated in refineries and in some specific petrochemical plants (e.g., ethylene). This is due to the excellent economic returns demonstrated in an abundance of expe...

Decontamination of Process Streams Through Electrohydraulic Discharge

Discharging a high-energy spark underwater creates a shock wave which dissipates through an acoustic field. The hydroxyl radicals created by the field are able to mildly oxidize the surfaces of ink and toner particles suspended in water, thereby decreasing their zeta potential. This decrease inhibits the tendency of the particles to reattach to fiber, which is negatively charged. Pilot studies ...

Role of Nursing Process in Infection Control

برای بررسی و شناخت، پرستار نیاز به شناسایی مکانیزم های دفاعی بدن و علم و آگاهی کلی از عفونت دارد هم چنین مروری از تاریخچه بیماری مددجوو خانواده وی، کمک به شناسایی موقعیت بیماری واگیر دار می نماید و بررسی حالتهای بالینی بیمار تعیین کننده علائم و نشانه های عفونت خواهد بود. تجزیه و تحلیل یافته های آزمایشگاهی عاملی مهم در بررسی و شناخت عوامل خطر یا موقعیتهای افزایش دهنده عفونت و چگونگی وضعیت عفونت...

ORNL/TM-1999/312 Chemical Technology Division MEASUREMENT OF ACHIEVABLE PLUTONIUM DECONTAMINATION FROM GALLIUM BY MEANS OF PUREX SOLVENT EXTRACTION