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deep well drilling waste liquid harmless disposal technology incorporated

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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deep well drilling waste liquid harmless disposal technology incorporated
Heavy metal removal from wastewater using various ...
Heavy metal removal from wastewater using various ...

Composite of multi-walled carbon nanotubes and ,iron oxide, 20 6 – 10–60 0.1–2 – 88% Gupta et al. Manganese dioxide/,iron oxide,/,acid, oxidised multi-walled carbon nanotube nanocomposites 50–300 2 Langmuir 150 5 186.9 85% Luo et al. Carbon nanotubes functionalised using nitric ,acid, and potassium permagnate 1 9

Recycling of a wastewater to iron oxide micro structures ...
Recycling of a wastewater to iron oxide micro structures ...

22/8/2019, · The obtained material was used for the removal of Cd (II), Pb (II), and Ni (II) ions from aqueous solutions. Further utilization of iron oxide nanomaterials for wastewater treatment is presented by Mousavi et al [ 26 ]. Fe 3 O 4 nanoparticles were modified by oak shell and their removal of Ni (II) was investigated.

S ALIZARIN RED DYE REMOVAL FROM AQUEOUS SOLUTION …
S ALIZARIN RED DYE REMOVAL FROM AQUEOUS SOLUTION …

KEYWORDS: nanochitosan, tamarind shell, ,iron oxide, nanoparticles, adsorption, s-alizarin. ,red, dye. INTRODUCTION. Disruption and gradual destruction of the aquatic ecosystem occurs by the dye-bearing. ,wastewater, which is not only aesthetically displeasing but also restrains sunlight from.

Oxalic Acid Recovery from High Iron Oxalate Waste Solution ...
Oxalic Acid Recovery from High Iron Oxalate Waste Solution ...

The recovery of iron from red mud by selective leach with oxalic acid was studied. In order to reduce the cost of iron recovery, the red mud was washed with dild. hydrochloric acid before it …

Convenient pH-responsive removal of Acid Black 1 by green ...
Convenient pH-responsive removal of Acid Black 1 by green ...

Convenient pH-responsive removal of ,Acid, Black 1 by green L-histidine/,iron oxide, magnetic nanoadsorbent from water: performance and mechanistic studies† Qurrat-ul-Ain, *a Jaweria Khatoon, b Muhammad Raza Shah, c Muhammad Imran Malik, c Iffat Abdul Tawab Khan, b Sumaira Khurshid b and Raheela Naz a This study was aimed at developing green histidine-modified Fe

Iron (Fe) and water - Lenntech
Iron (Fe) and water - Lenntech

Iron, carbonate has a water solubility of 60 mg/L, ,iron, sulphide of 6 mg/L, and ,iron, vitriol even of 295 g/L. Many ,iron, chelation complexes are water soluble. Usually there is a difference between water soluble Fe 2+ compounds and generally water insoluble Fe 3+ compounds.

Iron (iii) Oxide: Structure Nomenclature Properties ...
Iron (iii) Oxide: Structure Nomenclature Properties ...

The ,iron oxide, (III) or ferric ,oxide, is an inorganic solid formed by reaction of ,iron, (Fe) and oxygen (O 2), in which a state is obtained from oxidation of the ,iron, of +3. Its chemical formula is Fe 2 O 3. In nature it is found mainly in the form of the mineral hematite, which owes its name to the ,red, …

Iron (Fe) and water - Lenntech
Iron (Fe) and water - Lenntech

Iron, carbonate has a water solubility of 60 mg/L, ,iron, sulphide of 6 mg/L, and ,iron, vitriol even of 295 g/L. Many ,iron, chelation complexes are water soluble. Usually there is a difference between water soluble Fe 2+ compounds and generally water insoluble Fe 3+ compounds.

Convenient pH-responsive removal of Acid Black 1 by green ...
Convenient pH-responsive removal of Acid Black 1 by green ...

Convenient pH-responsive removal of ,Acid, Black 1 by green L-histidine/,iron oxide, magnetic nanoadsorbent from water: performance and mechanistic studies† Qurrat-ul-Ain, *a Jaweria Khatoon, b Muhammad Raza Shah, c Muhammad Imran Malik, c Iffat Abdul Tawab Khan, b Sumaira Khurshid b and Raheela Naz a This study was aimed at developing green histidine-modified Fe

Development of Nanoporous Iron Oxide-pillared Clay for Dye ...
Development of Nanoporous Iron Oxide-pillared Clay for Dye ...

Proceedings of the 5th International Conference on Nanotechnology: Fundamentals and Applications Prague, Czech Republic, August 11-13, 2014 Paper No. 190 190-1 Development of Nanoporous ,Iron Oxide,-pillared Clay for Dye-containing ,Wastewater, Treatment

treatment of hydrofluoric acid wastewater
treatment of hydrofluoric acid wastewater

The present invention relates to the field of sewage treatment, and more particularly to a method of ,treatment of hydrofluoric acid wastewater,. We provide a hydrofluoric ,acid, recycling cleaning apparatus. Prior art of washing hydrofluoric ,acid, without no recycling and handling as a waste, resulting in waste of costs, increasing the risk of additional hydrofluoric ,acid, by operating personnel hazard.

An Overview of Nanomaterials for Water and Wastewater ...
An Overview of Nanomaterials for Water and Wastewater ...

In this paper, the most extensively studied ,nanomaterials,, zero-valent metal nanoparticles (Ag, Fe, and Zn), metal ,oxide, nanoparticles (TiO 2 , ZnO, and ,iron, oxides), carbon nanotubes (CNTs), and nanocomposites are discussed and highlighted in detail. Besides, future aspects of ,nanomaterials, in water and ,wastewater, treatment are discussed.

Superparamagnetic Iron Oxide as Photocatalyst and ...
Superparamagnetic Iron Oxide as Photocatalyst and ...

Title:Superparamagnetic ,Iron Oxide, as Photocatalyst and Adsorbent in ,Wastewater, Treatment – A Review VOLUME: 12 ISSUE: 1 Author(s):Nur Shazrynda Md. Shahrodin , Juhana Jaafar*, Abdul Razak Rahmat, Norhaniza Yusof, Mohammad Hafiz Dzarfan Othman and Mukhlis A. Rahman Affiliation:School of Chemical and Energy Engineering, Faculty of Chemical Engineering, …

treatment of hydrofluoric acid wastewater
treatment of hydrofluoric acid wastewater

The present invention relates to the field of sewage treatment, and more particularly to a method of ,treatment of hydrofluoric acid wastewater,. We provide a hydrofluoric ,acid, recycling cleaning apparatus. Prior art of washing hydrofluoric ,acid, without no recycling and handling as a waste, resulting in waste of costs, increasing the risk of additional hydrofluoric ,acid, by operating …

Superparamagnetic Iron Oxide as Photocatalyst and ...
Superparamagnetic Iron Oxide as Photocatalyst and ...

Title:Superparamagnetic ,Iron Oxide, as Photocatalyst and Adsorbent in ,Wastewater, Treatment – A Review VOLUME: 12 ISSUE: 1 Author(s):Nur Shazrynda Md. Shahrodin , Juhana Jaafar*, Abdul Razak Rahmat, Norhaniza Yusof, Mohammad Hafiz Dzarfan Othman and Mukhlis A. Rahman Affiliation:School of Chemical and Energy Engineering, Faculty of Chemical Engineering, …

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