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Flue gas is acidic and can be used to neutralize alkaline wastewater

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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Flue gas is acidic and can be used to neutralize alkaline wastewater
Radioactive nuclear waste is a global threat. These ...
Radioactive nuclear waste is a global threat. These ...

Vitrification, a method of encasing ,waste, in glass to make it leakproof, is the consensus proposal to remedy leakage issues. But such an irreversible process will forever limit access to the ,waste,, thereby nullifying any future remediation solution. Intense radioactivity will still be toxic through the glass.

Diffusion Dialysis for Acid Recovery from Acidic Waste ...
Diffusion Dialysis for Acid Recovery from Acidic Waste ...

Finally, some directions are provided for the further development of AEMs in DD for acid recovery from ,acidic waste, solutions. Inorganic acids are commonly used in mining, metallurgical, metal-processing, and ,nuclear,-fuel-reprocessing industries in various processes, such as leaching, etching, electroplating, and metal-refining.

Frontiers | Prospects for Fungal Bioremediation of Acidic ...
Frontiers | Prospects for Fungal Bioremediation of Acidic ...

Highly concentrated radionuclide waste produced during the Cold War era is stored at US Department of Energy (DOE) production sites. This radioactive waste was often highly acidic and mixed with heavy metals, and has been leaking into the environment since the 1950s.

Groups seek to have Biden EPA declare gypsum acid water ...
Groups seek to have Biden EPA declare gypsum acid water ...

In 1991, as a result of a review, EPA discovered that phosphorus gypsum and ,acidic, process ,water, were not hazardous wastes. With this discovery, with a few exceptions, they could be treated as solid ,waste, as long as they continued to be piled up, and the radioactivity released …

Radiolysis - an overview | ScienceDirect Topics
Radiolysis - an overview | ScienceDirect Topics

Radiolysis, occurs in environments under irradiation: ,water, as coolant in ,nuclear, power plants (NPP), or in cements (used for ,nuclear waste, management, for instance), bitumen (,nuclear, wastes) and polymers (insulators and ,nuclear, wastes). The ,radiolysis, of ,water, leads to both oxidizing (H 2 O 2, O 2, OH •, O 2 •, O 2 • −) and reducing (H 2, H •, e aqu −) species, among …

Atmospheric Water Pollution - Water Pollution
Atmospheric Water Pollution - Water Pollution

In the atmosphere, ,water, particles mix with carbon dioxide sulphur dioxide and nitrogen oxides, this forms a weak acid. Air pollution means that ,water, vapour absorbs more of these gases and becomes even more ,acidic,. When it rains the ,water, is polluted with these gases, this is …

Nuclear reprocessing - Wikipedia
Nuclear reprocessing - Wikipedia

Nuclear, reprocessing is the chemical separation of fission products and unused uranium from spent ,nuclear, fuel. Originally, reprocessing was used solely to extract plutonium for producing ,nuclear, weapons. With commercialization of ,nuclear, power, the reprocessed plutonium was recycled back into MOX ,nuclear, fuel for thermal reactors. The reprocessed uranium, also known as the spent fuel …

Metal sulfide ion exchangers: superior sorbents for the ...
Metal sulfide ion exchangers: superior sorbents for the ...

from ,water, solutions.11 Silica-based materials, however, cannot be used for remediation of extreme alkaline or ,acidic waste water, (e.g. ,nuclear waste,) due to their instability under such conditions.8 Metal organic frameworks (MOFs) incorporating functional groups with high affinity for toxic or radioactive ions appear to

Process development for separation of cesium from acidic ...
Process development for separation of cesium from acidic ...

15/10/2014, · A new process for selective separation of cesium from ,acidic nuclear waste, solution has been described using 1,3-dioctyloxycalix [4]arene-crown-6 (CC6)/ n -dodecane modified with isodecyl alcohol. The process solvent was optimized as 0.03 M CC6 + 30% isodecyl alcohol/ n -dodecane for efficient recovery of cesium.

Supercritical fluid - Energy Education
Supercritical fluid - Energy Education

In ,nuclear, reactors, the sudden change of density of ,water, (going from ,water, to steam) can create a significant change in moderation, causing problems with the ,nuclear, reactions. Since supercritical fluids don't undergo a phase change, they can't bubble, it would be an added safety feature for ,nuclear, …

Coal and Water Pollution | Union of Concerned Scientists
Coal and Water Pollution | Union of Concerned Scientists

6/12/2017, · The fundamental issue involves contamination of nearby rivers, lakes, and aquifers by what comes out of a coal mine—usually highly ,acidic water, containing heavy metals like arsenic, copper, and lead. The process is known as acid mine drainage.

Frontiers | Prospects for Fungal Bioremediation of Acidic ...
Frontiers | Prospects for Fungal Bioremediation of Acidic ...

This radioactive ,waste, was often highly ,acidic, and mixed with heavy metals, and has been leaking into the environment since the 1950s. Because of the danger and expense of cleanup of such radioactive sites by physicochemical processes, in situ bioremediation methods are being developed for cleanup of contaminated ground and groundwater.

Kinetics of oxyapatite [Ca2Nd8(SiO4)6O2] and powellite ...
Kinetics of oxyapatite [Ca2Nd8(SiO4)6O2] and powellite ...

DOE PAGES Journal Article: Kinetics of oxyapatite [Ca2Nd8(SiO4)6O2] and powellite [(Ca,Sr,Ba)MoO4] dissolution in glass-ceramic ,nuclear waste, forms in ,acidic,, neutral, and alkaline conditions

US3933635A - Method for removing soluble selenium from ...
US3933635A - Method for removing soluble selenium from ...

Abstract. Selenium is removed from solution in ,acidic waste water, by treatment of the ,water, with a metallic reducing agent. The invention is particularly effective for removal of selenium from zinc smelter effluent by reaction of the effluent with powdered zinc. Description.

A new serious problem with stainless steel ... - nuclear-news
A new serious problem with stainless steel ... - nuclear-news

30/1/2020, · A new serious problem with stainless steel canisters for nuclear wastes Schematic of a stainless steel nuclear waste canister, with radioactive particles (purple) trapped inside in glass and the acidic spiral that starts when water, steel, and glass …

Solidification of Acidic High Nitrate Nuclear Wastes by ...
Solidification of Acidic High Nitrate Nuclear Wastes by ...

Two methods of absorption on silica gel were also tested: direct absorption and rotary spray drying. The ,waste, simulant acidity varied between 1 N and 12 N. The ,waste, simulant was neutralized by pre-blending calcium hydroxide with Portland cement and blast furnace slag powders prior to mixing with the simulant for grout solidification.

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