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Shell Oil Refinery

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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Shell Oil Refinery
Kjeldahl method - Wikipedia
Kjeldahl method - Wikipedia

The ,Kjeldahl method, or Kjeldahl digestion (Danish pronunciation: [ˈkʰelˌtɛˀl]) in analytical chemistry is a method for the quantitative determination of ,nitrogen, contained in organic substances plus the ,nitrogen, contained in the inorganic compounds ,ammonia, and ammonium (NH 3 /NH 4 +).Without modification, other forms of inorganic ,nitrogen,, for instance nitrate, are not included in this ...

"Structural Collapse Could Occur At Any Time": Florida ...

Florida residents located within a one of a phosphate processing plant in Manatee County were evacuated this weekend as officials warned that a pond containing radioactive ,wastewater, could collapse "at any time," according to CBS News. "A portion of the containment wall at the leak site shifted laterally," said Manatee Director of Public Safety Jake Saur, after the Piney Point processing plant ...

Sub-Pilot-Scale Hybrid Electrochemical System for Water ...
Sub-Pilot-Scale Hybrid Electrochemical System for Water ...

photovoltaic-electrolysis system for ,wastewater, treatment with simultaneous hydrogen ... ,containing, 0.1 wt % acetic ,acid,. For real ,wastewater,, the chemical oxygen demand . 205 (COD) was measured titrimetrically with COD reagent vials (Hach), which use ,dichromate, as the oxidant in acidic solution at 150 oC for 2 hrs. AgNO 3 (Aldrich) was

Ammonia-Nitrogen Water Quality Analyzer Determination Of ...
Ammonia-Nitrogen Water Quality Analyzer Determination Of ...

This ,ammonia, analyzer ,wastewater, works in accordance with the technical requirements of HJ/T 536-2009 Water Quality ,Ammonia,-,Nitrogen, Measurement-Salicylic ,Acid, Method, fully meets the pollution sources, municipal ,wastewater,, industrial processes in the application areas, and has passed the certification of CMC and CCEP.

Treatment of oilfield wastewater by combined process of ...
Treatment of oilfield wastewater by combined process of ...

For fracturing ,wastewater,, it has been demonstrated that no single technology can meet suitable effluent characteristics, and two or more treatment systems are required in series operation (Olsson et al. 2013). Micro-electrolysis can be used to remove dissolved refractory organics and colloidal particles but have many limited problems.

Wastewater Technology Fact Sheet: Ammonia Stripping
Wastewater Technology Fact Sheet: Ammonia Stripping

of ,ammonia, and/or ,nitrogen,-containing compounds that may readily form ,ammonia,. It is often easier and less expensive to remove ,nitrogen, from ,wastewater, in the form of ,ammonia, than to convert it to nitrate-,nitrogen, before removing it (Culp et al., 1978). ,Ammonia, (a weak base) reacts with water (a weak ,acid,) to form ammonium hydroxide. In ,ammonia

Decomplexation of Electroplating Wastewater in a Higee ...
Decomplexation of Electroplating Wastewater in a Higee ...

wastewater,, the COD removal efficiency reached to about 48% after 40 min electrolysis, which was about 2 times the value achieved in the normal gravity field. Dengjie Zhong et al [28] had studied de-colorization of reactive brilliant orange X-GN by a rotating electrochemical disc process. Half of disc

Nutrients in Wastewater - Swim Sustain Water
Nutrients in Wastewater - Swim Sustain Water

Nitrogen, • Because ,nitrogen, is an essential building block in the synthesis of protein, ,nitrogen, data will be required to evaluate the treat ability of ,wastewater, by biological processes. • Insufficient ,nitrogen, can necessitate the addition of ,nitrogen, to make the ,wastewater, treatable. • Where control of alga growth in the receiving water is

Nutrient Removal 101 - Process Fundamentals and Operation
Nutrient Removal 101 - Process Fundamentals and Operation

Wastewater, • ,Nitrogen, – ,Ammonia, (NH 3) ... ,Ammonia Nitrogen, Bacterial Decomposition Bacterial Cells Net Growth Decomposition Raw Sewage Nitrite (NO 2-) Nitrate (NO 3-) O 2 O 2 Nitrification ,Nitrogen, Gas (N 2) Denitrification Org Carbon ,Nitrogen, gas is harmless byproduct . ... • Acetic ,acid, (vinegar)

ACS Publications: Chemistry journals books and ...
ACS Publications: Chemistry journals books and ...

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Ammonia Nitrogen Absorption Tower | Water Pretreatment ...
Ammonia Nitrogen Absorption Tower | Water Pretreatment ...

The NH3-OH and (NH4)2SO4 absorbed by water or sulfuric ,acid, can be used as boiler stripping sulphur or fertilizer. The expected treatment effect of the ,ammonia nitrogen absorption tower, After the exhaust gas flows into the ,ammonia nitrogen absorption tower,, the ,ammonia nitrogen, removal rate is over 90% and achieves exhausting standard levels.

Bioresource Technology - Journal - Elsevier
Bioresource Technology - Journal - Elsevier

Bioresource Technology, publishes original articles, review articles, case studies and short communications on the fundamentals, applications and management of ,bioresource technology,.. The journal's aim is to advance and disseminate knowledge in all the related areas of biomass, biological waste treatment, bioenergy, biotransformations and bioresource systems analysis, and technologies ...

Pretreatment of Chemical Cleaning Wastewater by ...
Pretreatment of Chemical Cleaning Wastewater by ...

Analyses of chemical cleaning ,wastewater, characteristics, including COD, BOD5 and pH were conducted. COD was determined by potassium ,dichromate, method. BOD5 was determined by dilution and inoculation method. pH value was determined by pH meter. Index COD/mg·L-1 BOD 5/mg·L-1 Oil/mg·L-1 pH Value 20368 2445 320 11.3

Accepted Manuscripts | Applied and Environmental Microbiology
Accepted Manuscripts | Applied and Environmental Microbiology

DISCLAIMER: These manuscripts are provided "as is" without warranty of any kind, either expressly for a particular purpose, or non-infringement.Changes will be made to these manuscripts before publication. Review and/or use or reliance on these materials is at the discretion and risk of the reader/user.

Effect of Ammonia Nitrogen and Dissolved Organic Matter ...
Effect of Ammonia Nitrogen and Dissolved Organic Matter ...

For the first time, ,ammonia nitrogen, (NH 3 N) was found to significantly influence genotoxicity during ,wastewater, chlorination. After chlorination, the genotoxicity decreased in ,wastewater, with a low NH 3 N concentration (<10∼20 mg/L), but it increased notably in ,wastewater, with a …

Collecting and Preserving Waste and Wastewater Samples for ...
Collecting and Preserving Waste and Wastewater Samples for ...

40 milligrams mercuric chloride per liter or 2 milliliters sulfuric ,acid, per liter: 7 days: Total Kjeldahl ,nitrogen,: 4 degrees Celsius and 0.8 milliliter sulfuric ,acid, per liter: unstable: Nitrate (NO 3-) 0.8 milliliter sulfuric ,acid, per liter: 7 days: Nitrate (NO 2-) 0.8 milliliter sulfuric ,acid, per liter: 7 days: ,Ammonia, …

Nitrogen and Phosphorus Recovery from Wastewater
Nitrogen and Phosphorus Recovery from Wastewater

and ,ammonia,. Most naturally occurring reactive ,nitrogen, (6.5 Tg (teragram) N/year in US [2] and 100–300 Tg N/year globally [3]) comes from lightning (2 %) and biological fixation (98 %). However, natural fixing of ,nitrogen, is insufficient to meet the food and energy demand of the rising world popula-tion [4].

Nitrogen Ammonia - Hach
Nitrogen Ammonia - Hach

Nitrogen, Ammonia, DOC316.53.01077 Salicylate Method1 Method 8155 0.01 to 0.50 mg/L NH3–N Powder Pillows Scope and application: For water, ,wastewater, and seawater. 1 Adapted from Clin. Chim. Acta., 14, 403 (1966). Test preparation Instrument-specific information

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