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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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Wastewater treatment - Sludge treatment and disposal ...
Wastewater treatment - Sludge treatment and disposal ...

Wastewater, treatment - ,Wastewater, treatment - ,Sludge treatment, and disposal: The residue that accumulates in sewage treatment plants is called sludge (or biosolids). Sewage sludge is the solid, semisolid, or slurry residual material that is produced as a by-product of ,wastewater, treatment processes. This residue is commonly classified as primary and secondary sludge.

Biochemical oxygen demand - Wikipedia
Biochemical oxygen demand - Wikipedia

Biochemical oxygen demand, (BOD) is the amount of dissolved oxygen (DO) needed (i.e. demanded) by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period. The BOD value is most commonly expressed in milligrams of oxygen consumed per litre of sample during 5 days of incubation at 20 °C and is often used as a ...

Process Design Manual Sludge Treatment And Disposal
Process Design Manual Sludge Treatment And Disposal

----- LIST OF FIGURES Figure Page 2-1 Unit processes—,sludge, processing and disposal 2-4 2-2 Evaluation of system alternatives 2-7 2-3 Enumeration of ,sludge, treatment processes and their functions 2-13 3-1 Particle size—common materials 3-8 3-2 Fluid flow through an incompressible ,sludge, cake 3-13 3-3 Fluid flow through a compressible ,sludge, cake 3-14 3-4 Raw primary filter cake 3-16 3-5 Removal of raw primary ,sludge, …

US20170267555A1 - Scrubber wastewater treatment method and ...
US20170267555A1 - Scrubber wastewater treatment method and ...

A scrubber ,wastewater, treatment device, according to one possible embodiment, includes a magnetic powder adding device controllable to add a magnetic powder to be added to scrubber ,wastewater, having been generated by treating combustion exhaust gas in a scrubber, and a controller configured to control an amount of the magnetic powder added by the magnetic powder adding device in accordance with a …

HJ 2030-2013 PDF.
HJ 2030-2013 PDF.

HJ/T 265 environmental protection product technical requirements ,scraper, ... HJ 578 Oxidation Ditch Activated ,Sludge Wastewater, Treatment Engineering Technical Specification ... The glutamic ,acid wastewater, and the comprehensive ,wastewater, have a high pH value, ...

Sludge Handling (Water and Wastewater) Equipment
Sludge Handling (Water and Wastewater) Equipment

Rotary scum skimming troughs are the most economical ,method, for removing all grease, scum, and other floating materials from the water surface in rectangular clarifiers. Scum troughs can rotate up to 75 degrees both forward and backward to accommodate changes in water level and collect surface material from either side of the trough.

Sludge Dewatering - an overview | ScienceDirect Topics
Sludge Dewatering - an overview | ScienceDirect Topics

31/12/1998, · Vacuum drum filters are successfully used for dewatering softener, sludge., A cloth covered drum with horizontal axis above a trough is rotated to pick up the, sludge, in the trough. Water is removed internally under vacuum and the dewatered, sludge, is removed by a, scraper, located just before the drum surface re-enters the trough.

Buried Sewage Treatment System-Wastewater Equipment
Buried Sewage Treatment System-Wastewater Equipment

Sludge Scraper, Equipment; Bar Screen Waste Remover; ,Waste Water, Pump; Integrated ,Wastewater, Treatment Equipment; ,Wastewater, Treatment Chemicals; News; Cases; Contact; About us

Buried sewage treatment equipment installation buried ...
Buried sewage treatment equipment installation buried ...

The Cavitation Air Flotation System in ,Wastewater, Treatment The cavitation air flotation system, also known as the CAF system, is a kind of dissolved air floatation machine (TDAF) for the ,wastewater, treatment application. The cavitation air flotation provides a ,method, or process of generating air bubbles to remove the flocs.

Lesson 15: Handling and Disposal of Process Wastes
Lesson 15: Handling and Disposal of Process Wastes

Coagulant ,sludge, is an inert material that is mostly made up of the sediment that was in the raw water and the solids added by the treatment chemicals. Unlike ,wastewater sludge,, or biosolids, water treatment plant ,sludge, only has a biological component associated with algae and the biological material that may have been removed. Regulations

Acid rain - Wikipedia
Acid rain - Wikipedia

Acid rain, is a rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH).It can have harmful effects on plants, aquatic animals, and infrastructure. ,Acid rain, is caused by emissions of sulphur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.

Sludge Handling Dewatering And Disposal Alternatives For ...
Sludge Handling Dewatering And Disposal Alternatives For ...

The savings in hauling and disposal cost justify investment in the equipment. For a plant disposing of its ,sludge, at $0.43/gal, the ,installation, of a vacuum filter with a 19-ft2 (1.8-m2) filter area yields a 30 percent after-tax return on in- vestment when the feed rate exceeds approximately 30 gal/h (113 L/h).

HJ 2045-2014 PDF. - Chinese Standard
HJ 2045-2014 PDF. - Chinese Standard

When ,wastewater sludge, may amount 0.0002m3/m3 ~ 0.0005m3/m3 determined. c) the amount of activated ,sludge, according to the following formula. 1) Press the ,sludge, age calculated as follows. cθ VXΔX (3) 2) Press the ,sludge, yield coefficient, attenuation coefficient and non-biodegradable and inert suspended solids calculated as follows.

Buried Wastewater Treatment Machine-wastewater equipment
Buried Wastewater Treatment Machine-wastewater equipment

Its main working principle is as follows: After impurities is adsorbed and treated by activated carbon, ,acid, (alkali) nature of sewage is treated by an ,acid,-base combination ,method,, and then filtered, and finally large impurities are recovered by a filter press to make it available.

Nitrosamines - an overview | ScienceDirect Topics
Nitrosamines - an overview | ScienceDirect Topics

The majority of evidence suggests that the free amino ,acid, proline is first nitrosated and then decarboxylated to form NPYR during frying. ... in ,Encyclopedia, of Food Sciences and Nutrition (Second Edition), 2003. ... and water treatment via chlorination or chloroamination of ,wastewater,.

Oleum | H2SO4.SO3 - PubChem
Oleum | H2SO4.SO3 - PubChem

Mixing in equal molar portions with any of the following substances in a closed container caused the temperature and pressure to increase: 2-aminoethanol, ammonium hydroxide (28%), chlorosulfonic ,acid,, ethylenediamine, ethyleneimine, ethylene cyanohydrin, hydrochloric ,acid, (36%), hydrofluoric ,acid, (48.7%), isopropyl alcohol, nitric ,acid, (70%), 2-nitropropane, propiolactone, propylene oxide ...

12 Interesting Facts About Sulfuric Acid | OhFact!
12 Interesting Facts About Sulfuric Acid | OhFact!

Source: ,encyclopedia,. 2. Colors of ,Sulfuric Acid,. The color range of ,Sulfuric Acid, is colorless to slightly yellow and it is soluble in water at all concentrations. Source: ,encyclopedia,, Image: turbosquid.com. 3. Historical name Historical name of this ,acid, is “Oil of Vitriol”. The study about this ,acid, …

Polymer Dosing System For Dewatering - Industrial News ...
Polymer Dosing System For Dewatering - Industrial News ...

An integrated structure type that is divided into a fixed type and a mobile type according to the ,installation method, is adopted. Each type of summary device is equipped with a stirring system, an automatic control system, and a dosing system.polymer dosing system for dewatering has the advantages of small volume, compact structure, no noise, no secondary pollution and convenient ,installation, …

Extracellular polymeric substances (EPS) of microbial ...
Extracellular polymeric substances (EPS) of microbial ...

1/11/2010, · In biological ,wastewater, treatment systems, most of the microorganisms are present in the form of microbial aggregates, such as sludge flocs, biofilms, and granules. The presence of ,extracellular polymeric, substances (EPS), a complex high-molecular-weight mixture of polymers, in pure cultures, activated sludge, granular sludge, and biofilms, has been confirmed and observed using various ...

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