radioactive effluent Articles

  • Removal of Radioactive Effluent Waste from Uranium Enrichments Plants

    In an effort to reduce greenhouse emissions many nations and multi-national corporations are once again focusing on the development of safe radioactive sources for energy generation. After a hiatus of some 20 years commercial nuclear power plants are being developed globally to satisfy increasing global energy demands. Whether for generation of electrical power or in the production of fission ...


    By Dynamic Adsorbents Inc.

  • The transport of radioactive material

    The first part of this study is devoted to the regulations on the safe transport of radioactive material. The rules applicable to the transport of radioactive material are analysed, along with their elaboration at the international, Community and French levels. The second part will describe the system of civil liability for nuclear damage and the rules applicable to the compensation of the ...


    By Inderscience Publishers

  • On the removal of silver and antimony radionuclides from radioactive liquid waste by some classical means

    After partial upgrading of a research reactor at the Pakistan Institute of Nuclear Science and Technology, Islamabad, some waste effluents having 110mAg and 124Sb with higher activity levels than the disposal limits piled up because the waste storage capacity was not yet enhanced. Experimental work was conducted to arrive at some optimum procedure for the treatment of the waste to ensure smooth ...


    By Inderscience Publishers

  • Selection and design criteria of supported liquid membrane for the treatment of rad-waste

    Supported Liquid Membrane (SLM) is an emerging trace metal pre-concentration technique. It has the ability to decontaminate radionuclides even from lean secondary effluent. SLM can be considered as a part of process intensification, which implies a closed loop operation. It has reduced space requirement as well as minimised secondary effluent generation and the number of unit steps. Proper ...


    By Inderscience Publishers

  • The fate of 14C-radiolabelled diclofenac and 4′-hydroxydiclofenac in membrane bioreactor treatment of wastewater

    This study aimed at enhancing knowledge on the fate of diclofenac (DF), together with its main human metabolite 4′-hydroxydiclofenac (4′OHDF), during wastewater treatment by using a laboratory-scale membrane bioreactor (MBR). The reactor was fed continuously with non-radiolabelled diclofenac for a one month period prior to a single pulse of a 14C-radiolabelled solution of DF and 4′OHDF. The ...


    By IWA Publishing

  • Magnetic biosorbent for removal of uranyl ions

    In this work magnetic biosorbent, which consisted of sugarcane bagasse as polymeric matrix with magnetite nanoparticles, was prepared. This magnetic composite has the purpose to remove uranyl ions from aqueous effluents. This magnetic biosorbent have presented superparamagnetic properties. Variables of adsorption process of uranyl ions by magnetic biosorbent in nitric solutions were investigated, ...


    By Inderscience Publishers

  • Got Survey Meters - How About Carbon -14 & Tritium Survey Meters?????

    Now show me your Carbon-14 and Tritium survey meter. Ooops, don’t have one? Regulatory Guide 1.21 defines a principal nuclide as any radionuclide whose concentration exceeds 1% of its total release. It states that the released quantity must be included in the Annual Radioactivity Discharge Report. For many U.S. nuclear power plants Tritium and C-14 have ...


    By Technical Associates

  • Study on wastewater treatment systems in hospitals of Iran

    Water resources shortage is one of the most important issues due to the population growth and ever increasing water demands as well as its conservation. Wastewater treatment can serve as a logical way to recycle water to consumption cycle. Due to variety of water uses, it seems that there are certain treatment techniques for different types of wastewater, such as municipal and hospital ...


    By University of Tehran

  • Shifting Paradigms of Environmental Management

    Introduction In the past few decades there has been an all around awareness of environmental degradation caused by industrial activities on account of green house gas emissions, stratospheric ozone depletion, acid rain and acidification, eutrophication, soil degradation, technological hazards, chemical mists and fog with potential damage to human race. Environmental considerations therefore ...

  • Assessment of radium‐226 bioavailability and bioaccumulation downstream of decommissioned uranium operations, using the caged oligochaete (Lumbriculus variegatus)

    The present study investigated the integrated effects of several geochemical processes that control radium‐226 (226Ra) mobility in the aquatic environment and bioaccumulation in in situ caged benthic invertebrates. 226Ra bioaccumulation from sediment and water was evaluated using caged oligochaetes (Lumbriculus variegatus) deployed for ten days in six areas downstream of decommissioned uranium ...


    By John Wiley & Sons, Ltd.

  • White Paper: ANSI N13.1-2011 Stack Sampling Considerations

    Background Nuclear facilities are required to follow industry standards for sampling stack effluents. Exposure of the general public to released radionuclides must be monitored as specified in US governmental regulations. The United States Environmental Protection Agency (USEPA) and the United States Nuclear Regulatory Commission (USNRC) have the authority over the monitoring of these ...

  • Detection and measurement of GWGs in semiconductor fab facilities

    Problem Statement Various processes and tools in the modern wafer fab plant produce effluent streams that contain unacceptably high levels of perfluorocarbon GWGs (greenhouse warming gases). These effluent streams are abated by plasma incineration and wet scrubbers and other techniques. It is necessary to measure the destruction removal efficiency (DRE) of the various abatement methods ...


    By CIC Photonics, Inc.

  • Top 3 Uses of Activated Carbon

    Activated carbon is an effective purifier. It is used to remove organic pollutants from different gaseous, liquid and solid substances. By removing the undesirable organic compounds, activated carbon can successfully remove the odour and taste of these compounds from a wide range of things.  Unlike other purification agents that react with organic compounds and change their nature, activated ...


    By Nichem Co.

  • Ionising Radiation

    Introduction The energy level of some types of radiation is high enough so that when they interact with matter they cause the formation of electrically charged particles or ion-pairs and break molecular bonds. These so-called ionising radiations are by their nature potentially harmful to life; at high doses they can be lethal and at lower doses can cause genetic damage. Ionising radiation occurs ...

  • Excavation, Retrieval, and Off-Site Disposal

    Introduction: Contaminated material is removed and transported to permitted off-site treatment and/or disposal facilities. Some pretreatment of the contaminated media usually is required in order to meet land disposal restrictions. Confined disposal facilities (CDFs) are engineered structure enclosed by dikes and designed to retain dredged materials. A CDF may have a large cell for ...

  • A forensic study to differentiate two dissolved gasoline plumes at adjoining service stations

    Three gasoline service stations are present at a highway intersection in central New Jersey. In the mid- to late- 1980s, service station “B” began to notice large discrepancies in their gasoline inventory. The USTs were removed in 1988 and a significant release was discovered. Separate-phase gasoline, as much as 1.5 feet (0.5 m) thick was present on the water table for about an area ...


  • Utilizing unconventional water sources for industrial reuse

    Reclamation and reuse of unconventional wastewater sources for plant raw water, cooling water and process pre-treatment has increased substantially due to increases in the cost of drinking water, recurring water shortages that can impact business operations, and tightening government regulation. Water is required in almost every industrial sector for the processing and manufacture of products. ...


    By WesTech Engineering, Inc.

  • Optimizing water management in hydraulic fracturing for shale oil and gas production

    Centralized treatment of wastewater is emerging as a viable solution for long-term efficiency in managing water sourcing and wastewater treatment in hydraulic fracturing. The number of hydraulic fracturing (fracking) shale oil and gas wells in the United States continues to increase. Within the Bakken Shale formation alone, in North Dakota and Montana, upwards of 15,000 hydraulic fracturing ...


    By WesTech Engineering, Inc.

  • Optimizing Water Management in Hydraulic Fracturing for Shale Oil and Gas Production

    Centralized treatment of wastewater is emerging as a viable solution for long-term efficiency in managing water sourcing and wastewater treatment in hydraulic fracturing. The number of hydraulic fracturing (fracking) shale oil and gas wells in the United States continues to increase. Within the Bakken Shale formation alone, in North Dakota and Montana, upwards of 15,000 hydraulic fracturing ...


    By WesTech Engineering, Inc.

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