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Lock&lock Co Ltd

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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Lock&lock Co Ltd
Reuse of excreta - Wikipedia
Reuse of excreta - Wikipedia

Reuse of excreta, refers to the safe, beneficial use of treated animal or human excreta after applying suitable treatment steps and risk management approaches that are customized for the intended reuse application. Beneficial uses of the treated excreta may focus on using the plant-available nutrients (mainly nitrogen, phosphorus and potassium) that are contained in the treated excreta.

Evaluation of site and hydrogeochemistry in an urban ...
Evaluation of site and hydrogeochemistry in an urban ...

Water supply in metropolitan cities has been a major concern especially in recent decades (Navarro & Carbonell 2007).A continuous good quality water supply is a key factor for good quality of life, environmental sustainability and economic growth in urban centers (Ranjan et al. 2012).Jilin ,City,, located in the middle of Jilin province, northeast China, has a population of approximately 4.30 ...

Titanium Dioxide-Based Nanomaterials for Photocatalytic ...
Titanium Dioxide-Based Nanomaterials for Photocatalytic ...

7/8/2014, · ,Study, of the Bulk Charge Carrier Dynamics in Anatase and Rutile TiO2 Single Crystals by Femtosecond Time-Resolved Spectroscopy. The Journal of Physical Chemistry C 2018, 122 (16) , 8925-8932. DOI: 10.1021/acs.jpcc.8b00256.

The effect of flotation and vegetal fining agents on the ...
The effect of flotation and vegetal fining agents on the ...

Finally, ,Songyuan, and Dongning samples stand out with unique profiles compared to the others in PCA analysis of 11 odor substances with OAV > 1, and ranked as top two in sensory evaluation, while ...

IJERPH | Free Full-Text | Risk Assessment and Source ...
IJERPH | Free Full-Text | Risk Assessment and Source ...

Mining and smelting activities are the primary sources of toxic metal pollution in China. The purpose of this ,study, was to investigate the pollution risk and identify sources of metals in the arable soil of a Zn/Pb mining and smelting district located in Huize, in Southwest China. Topsoil (346) and profile (three) samples were collected and analyzed to determine the total concentrations of ...

Expression of Concern: Abstracts - 2019 - Basic & ...
Expression of Concern: Abstracts - 2019 - Basic & ...

28/12/2020, · The objective of this ,study, is optimization of preparation conditions of fermented beverage based on enzyme hydrolysate of wheat flour and Lactobacillus plantarum VKPM B‐7583 by means of rotatable design to obtaining the greatest lactobacilli count and titratable ,acidity, not less than 100 °T.

Agricultural wastewater treatment - Wikipedia
Agricultural wastewater treatment - Wikipedia

Agricultural ,wastewater, treatment is a farm management agenda for controlling pollution from surface runoff that may be contaminated by chemicals in fertiliser, pesticides, animal slurry, …

Frontiers | Effect of Antibiotics on the Microbial ...
Frontiers | Effect of Antibiotics on the Microbial ...

Recycling waste into new materials and energy is becoming a major challenge in the context of the future circular economy, calling for advanced methods of waste treatment. For instance, microbially-mediated anaerobic digestion is widely used for conversion of sewage sludge into biomethane, fertilizers and other products, yet the efficiency of microbial digestion is limited by the occurrence of ...

The Preparation of 5-Nitro-2-Aminophenol and some ...
The Preparation of 5-Nitro-2-Aminophenol and some ...

Acidity, and electrochemical redox potentials. Razus, Alexandru C ... Electrochemical degradation of Reactive Blue 19 in chloride medium for the treatment of textile dyeing ,wastewater, with identification of intermediate compounds. Rajkumar, D. / Song ... Synthesis and spectroscopic ,study, of new biscoumarin dyes based on 7-(4 ...

Fluoride enrichment in groundwater of semi-arid urban area ...
Fluoride enrichment in groundwater of semi-arid urban area ...

The aim of this ,study, is to determine fluoride enhancement in the groundwater of semi-arid urban area of Khan Younis ,City,, southern Gaza Strip. Physic…

Expression of Concern: Abstracts - 2019 - Basic & ...
Expression of Concern: Abstracts - 2019 - Basic & ...

28/12/2020, · The objective of this ,study, is optimization of preparation conditions of fermented beverage based on enzyme hydrolysate of wheat flour and Lactobacillus plantarum VKPM B‐7583 by means of rotatable design to obtaining the greatest lactobacilli count and titratable ,acidity, not less than 100 °T.

Efficient Removal Approach of Micropollutants in ...
Efficient Removal Approach of Micropollutants in ...

27/10/2017, · In the recent past years, micropollutants that are pharmaceutically active compounds (PhACs) have been used extensively and have been discovered in raw sewage, ,wastewater, treatment plants, effluents, surface, and groundwater with concentrations from ng/L to several μg/L. Even though many of these compounds are still not determined online, monitoring technology improvements …

Fluoride enrichment in groundwater of semi-arid urban area ...
Fluoride enrichment in groundwater of semi-arid urban area ...

1/12/2014, · The ,study, area is the urban area of Khan Younis ,City, (which is the main ,city, in Khan Younis Governorate) located in the Southern part of Gaza Strip. The ,city, is considered as the second largest ,city, of Gaza Strip at latitude of 31, 3439 (31°, 20′, 38.040″) north and longitude of 34, 3025 (34°, 18′, 9.000″).

Field evidence of biodegradation of N-Nitrosodimethylamine ...
Field evidence of biodegradation of N-Nitrosodimethylamine ...

22 A recent ,study, has also reported concentrations of NDMA ranging from <0.5 to 5.2 ng/L in groundwater that had no specific sources of pollution. 23 Whereas NDMA was …

CCS aff | Carbon Capture And Storage | Coal
CCS aff | Carbon Capture And Storage | Coal

increased ,acidity,, well corrosion, and irrigation loss. ,Acidity, changes the pH of water. This change in pH can, in turn, have indirect impacts, such as the mobilization of toxic CO2 levels exceed 2 %, mild ,acidity, and corrosion can occur. metals, sulfate, or chloride, or it can change water quality by adding odor, color or bad taste. 2.2 ...

The Stanford Natural Language Processing Group
The Stanford Natural Language Processing Group

the , . of and to in a is that for on ##AT##-##AT## with The are be I this as it we by have not you which will from ( at ) or has an can our European was all : also " - 's your We

Fate of environmental pollutants - Ng - 2019 - Water ...
Fate of environmental pollutants - Ng - 2019 - Water ...

Photo‐oxidation of estrogen using ultraviolet (UV) and UV/H 2 O 2 was tested on spiked pure water solution and spiked ,aquaculture effluent, (Bennett, Mackie, Park, & Gagnon, 2018). Treatment using UV showed efficient removal of estrogen in both ,aquaculture wastewater, and pure water matrix, and the addition of H 2 O 2 had no significant contribution on the removal performance.

News | Starch Pros | Professionals in Starch Processing
News | Starch Pros | Professionals in Starch Processing

April 16 th 2021. Cargill is partnering with Starpro, the leading food grade tapioca starch producer in Thailand.. Cargill is partnering with Starpro, the leading food grade tapioca starch producer in Thailand, to expand its specialty tapioca starch offerings in the Asia Pacific region, supporting the product processing requirements of food manufacturers and meeting the sensory expectations of ...

The Science of Phosphorus - YSI
The Science of Phosphorus - YSI

Nationwide, runoff from non-point sources is the largest source of nutrients, including N and P discharged to surface water. Although phosphorus is the 11th most abundant element in the earth’s crust, most natural phosphate compounds are very insoluble, and therefore, not quickly replenished.

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