Welcome to the company ! we have many years of professional experience !
rsdgj@pyzyrsd.com +86 513525609655

Brake Service

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.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

Brake Service
Real-Time Online Monitoring for Assessing Removal of ...
Real-Time Online Monitoring for Assessing Removal of ...

Treated wastewater likely contains humic acid-like substances as a source of fluorophores, which can be identified at excitation (Ex) and emission (Em) wavelengths of 350 and 425 nm, respectively, in …

Enterococci in the Environment | Microbiology and ...
Enterococci in the Environment | Microbiology and ...

Furthermore, the use of single laboratory-grown strains (as opposed to ,wastewater, isolates) as a mesocosm inoculum may elevate inactivation rates for enterococci , thus further compounding the issue. In general, based on mesocosm studies, the time required to achieve a decrease in the concentration of enterococci of 3 orders of magnitude (i.e., 99.9%) ranges from 0.9 to 52 h ( 76 , 83 , 103 , 255 , 308 ).

Practical Guidance for Clinical Microbiology Laboratories ...
Practical Guidance for Clinical Microbiology Laboratories ...

20/7/2020, · This Practical Guidance for Clinical Microbiology document on the laboratory diagnosis of ,parasites from the gastrointestinal tract, provides practical information for the recovery and identification of relevant human parasites. The document is based on a comprehensive literature review and expert consensus on relevant diagnostic methods.

Bottled Water Quality Investigation | Environmental ...
Bottled Water Quality Investigation | Environmental ...

Bottled water contains disinfection byproducts, fertilizer residue, and pain medication. The bottled water industry promotes an image of purity, but comprehensive testing by the Environmental Working Group (EWG) reveals a surprising array of chemical contaminants in every bottled water brand analyzed, including toxic byproducts of chlorination in Walmart’s Sam’s Choice and Giant ...

Integration of effective microorganisms and membrane ...
Integration of effective microorganisms and membrane ...

For treatment of the contaminated urine by ,EM added directly, to MBR (Sequence 3), the addition of ,EM, was from the top of the reactor and this was conducted by a dosing pump. The results are given in Table 4. The residual concentration of LEF, IBP and ATV was 0.50 mg/L, 0.10 mg/L and 0.22 mg/L respectively.

Potassium chromate | K2CrO4 - PubChem
Potassium chromate | K2CrO4 - PubChem

Chromium compounds are known to be associated with cytotoxicity and carcinogenicity when applied via a skin route. The aim of this study was to evaluate the skin permeability and toxicological profiles of four chromium species. Chromium permeation across the skin, as determined by an in vitro Franz cell, decreased in the order of sodium chromate>,potassium chromate,>potassium dichromate>chromium ...

Innovative technologies take the ‘waste’ out of wastewater ...
Innovative technologies take the ‘waste’ out of wastewater ...

INCOVER ,added,-value plants will generate benefits from ,wastewater, offering three recovery solutions: 1) Chemical recovery (bio-plastic and organic acids) via algae/,bacteria, and yeast biotechnology; 2) Near-zero-energy plant providing upgraded bio-methane via pre-treatment and anaerobic co-digestion systems; 3) Bio-production and reclaimed water via adsorption, biotechnology based on wetlands systems and …

13.3 Using Chemicals to Control Microorganisms ...
13.3 Using Chemicals to Control Microorganisms ...

Triclosan in hand soap is ,directly, introduced into ,wastewater, and sewage systems as a result of the handwashing process. There, its antibacterial properties can inhibit or kill ,bacteria, responsible for the decomposition of sewage, causing septic systems to clog and back up.

New concepts in anammox processes for wastewater nitrogen ...
New concepts in anammox processes for wastewater nitrogen ...

Nitrification process refer to the aerobic oxidation of ammonium to nitrite and nitrite to nitrate, both steps catalyzed by ammonia-oxidizing ,bacteria, (AOB), nitrite-oxidizing ,bacteria, (NOB), complete ammonium oxidation ,bacteria,-Nitrospira strains (commamox) and ammonia-oxidizing archaea (AOA) (Gonzalez-Martinez et al. 2016b; Wang et al. 2017; Zhang et al. 2017b).

Global Water Pollution and Human Health | Annual Review of ...
Global Water Pollution and Human Health | Annual Review of ...

Water quality issues are a major challenge that humanity is facing in the twenty-first century. Here, we review the main groups of aquatic contaminants, their effects on human health, and approaches to mitigate pollution of freshwater resources. Emphasis is placed on chemical pollution, particularly on inorganic and organic micropollutants including toxic metals and metalloids as well as a ...

Google Translate
Google Translate

We would like to show you a description here but the site won’t allow us.

Public Health Media Library
Public Health Media Library

Links back to the CDC web site within syndicated content remain intact. No intermediate pages, pop-up messages, or other content is inserted between links in CDC syndicated content and the applicable CDC web site pages. These links will send users ,directly, back to the CDC web site, or link to CDC syndicated pages on the same syndicating web site.

Effective Microorganisms - Smiling Gardener
Effective Microorganisms - Smiling Gardener

Once your ,EM, or activated ,EM, has been diluted in water — often referred to as “extending” the ,EM, — and mixed with any optional biostimulants, it should be used within a few hours. It’s generally recommended to mix it again with equal parts unsulfured molasses, even though this …

Effective Microorganisms FAQs | EMNZ FAQs | Organic ...
Effective Microorganisms FAQs | EMNZ FAQs | Organic ...

EM, is used widely in ,environmental management, for decomposition and more importantly for recycling of wastes, both solids and liquids. The application and use of ,EM, technology in NZ is wide and varied: From crops like peas, wheat, linseed to onions, potatoes, carrots and beans. From sheep, cows and deer, to pigs and chickens

Laccases: structure function and potential application ...
Laccases: structure function and potential application ...

14/11/2019, · The global rise in urbanization and industrial activity has led to the production and incorporation of foreign contaminant molecules into ecosystems, distorting them and impacting human and animal health. Physical, chemical, and biological strategies have been adopted to eliminate these contaminants from water bodies under anthropogenic stress. Biotechnological processes involving ...

74096155 Fundamentals Of Reinforced Concrete Design ...
74096155 Fundamentals Of Reinforced Concrete Design ...

Values given shall be used ,directly, for members with normal density concrete (w, ':" · 2300 kg/ ml) ai1d gralte 415 reinforcement. For other conditions, the values shall be modified as follows: · For structural lightweight concrete hi:wil.1g unit weights in the range 1500-2000.kg/m', the values shall be multiplied by (1.65-0.0005 w,) but not less than 1.09, where w,is the unit mass in kg/ mJ .

Treatment of laundry wastewater by biological and ...
Treatment of laundry wastewater by biological and ...

For the biological treatment, a bacterial ,wastewater, treatment product specially designed for the biological treatment of domestic, food processing and industrial ,wastewater, was utilised. This product contains naturally occurring, non-pathogenic ,bacteria, which are capable of producing enzymes that have the ability to degrade fats, lipids, protein, detergents and hydrocarbons.

Appropriate technology for domestic wastewater management ...
Appropriate technology for domestic wastewater management ...

1/11/2016, · The examined hybrid systems included sedimentation followed by aeration and the ,EM, was ,added, to the sedimentation process for the purpose of enhancing the efficiency of treatment. The process involves monitoring of specific water quality parameter under varying operating conditions in a different sedimentation period, ,EM, doses, and aeration rates to reach the unrestricted water reuse.

(PDF) Organic Fertilizers: Types Production and ...
(PDF) Organic Fertilizers: Types Production and ...

bacteria, and fungus) ... ,directly, the amount of input. Erratic rains, ... unavoidable. Economically, the use of ,wastewater, reduces water dem and for irrigation as well .

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City