2 edition of Treatment of a glycol ether containing wastewater found in the catalog.
Treatment of a glycol ether containing wastewater
Stacy Cherrie Trussler
Written in English
|Statement||by Stacy Cherie Trussler.|
|The Physical Object|
|Pagination||xi, 57 leaves, bound :|
|Number of Pages||57|
metalworking fluids. Glycol ethers suppress foaming, decrease formulation viscosity, and do not have a negative effect on pH or corrosion inhibition. In addition, most glycol ethers are also biodegradable which makes them well suited for water-based formulations that may ultimately be processed through a waste water treatment facility. For More. While for the proteins-containing wastewater treatment, the membrane with hydrophilic surface exhibited about % COD retention ratio and superior antifouling performance: only % total flux decline and also more than % flux recovery by:
glycol ethers used as solvents in any foam product manufactured today. In response to the CAAA of , at least two manu-facturers of foam concentrate reformulated their prod-ucts to use a solvent that was not on the reporting list. This solvent is Dipropylene Glycol Monomethyl Ether (DPM) which is a propylene oxide based glycol Size: 49KB. Airport Deicing Fluid Treatment. Dynatec provides a unique system that treats spent airport deicing fluid to provide reuse quality water and recover glycol Treatment and Recovery. The runoff of de-icing fluid from aircraft has historically been allowed to drain to ground water or streams.
2-Butoxyethanol is an organic compound with the chemical formula BuOC 2 H 4 OH (Bu = CH 3 CH 2 CH 2 CH 2).This colorless liquid has a sweet, ether-like odor, as it derives from the family of glycol ethers, and is a butyl ether of ethylene a relatively nonvolatile, inexpensive solvent, it is used in many domestic and industrial products because of its properties as a al formula: C₆H₁₄O₂. Permeate I bears ethylene glycol that can be recovered from the wastewater by a low-energy-consuming reverse osmosis process. The process yields in concentrate II, which makes 30 vol. % of the processed wastewater stream and is recycled to the ethylene glycol distillation system for final separation of glycol .
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They observed that, ethylene glycol showed great resistance to this process, among another compounds contained in the wastewater and Temperatures above C were required for its effective degradation. At C, WO process could decrease the concentration of ethylene glycol from to mol/L, while at lower temperatures decreased to.
Treatment of high-strength ethylene glycol waste water in an expanded granular sludge blanket reactor: use of PVA-gel beads as a biocarrier Yue Jin, Dunqiu Wang, and Wenjie Zhang Guangxi Key Laboratory of New Energy and Building Energy Saving, College of Civil Engineering and Architecture, Guilin University of Technology, 12, Jiangan Road, Guilin, ChinaCited by: 2.
Instead of domestic waste water a synthetic waste water was used as a basic RUNWAY DE-ICING propylene glycol (PG) Fig.
Treatment of waste water containing agents AIRCRAFT DE-ICING diethylene glycol (DEG) >5% retention basin municipal sewage treatment plant by: The Toxicology of Glycol Ethers and its Relevance to Man ECETOC TR No. 95 2 Reports of a number of effects in humans have been associated with glycol ether exposure, such as anaemia, granulocytopenia and leukopenia, increased risk of abortion or reduced sperm count in Size: KB.
Accepta is a high performance glycol based antifoam and defoamer scientifically formulated for use in secondary treatment or final effluent in a wastewater treatment plant.
Accepta will rapidly reduce existing foam and can also be used as a defoamer. Accepta. Simulated wastewater containing Ni 2+, Zn 2+ and propylene glycol methyl ether (PGME), a solvent in polymer solution used in metal coating, was treated Cited by: The BMP experiment results suggest that the wastewaters containing propylene glycol and having chemical oxygen demand (COD) up to mg L-1 can be treated in anaerobic processes with high.
WATER TREATMENT PROGRAM FOR GLYCOL SYSTEMS Presented at ALBERTA Public Works, Supply & Services Property Management Operations Division Water Treatment Co-ordinators' Meeting #12 Edmonton, Alberta October 24th by G.F. Yuzwa, H2O ENGINEERING LTD. Edgemont Bay N.W. Calgary, Alberta T3A 2K7 October 22nd File Size: 78KB.
EPA has not classified the glycol ethers for carcinogenicity. Physical Properties The glycol ethers are colorless liquids with a slight odor. (1) The chemical formula for 2-methoxyethanol is C 3 H 8 O 2, and the molecular weight is g/mol. (4) The vapor pressure for 2-methoxyethanol is mm Hg at 25 °C, and it has a log octanol/water.
Reasons for Procedure. Propylene glycol solutions are used as heat exchange fluid s in several buildings at the University of Virginia (UVA). This Standard Operating Procedure (SOP) has been developed to promote safe work and responsible practices, and.
The purpose of this study was to investigate the biodegradability of propylene glycol in anaerobic conditions by using methanogenic culture. A master reactor was set up to develop a culture that would be acclimated to propylene glycol.
After reaching steady-state, culture was transferred to serum bottles. Three reactors with same initial conditions were run for by: 4. PEG Otal et al.  studied the integrated treatment of a model wastewater containing by means of a continuous WAO (wet air oxidation) process followed by continuous aerobic biodegradation and found the efﬁciency was enhanced compared to the direct biological treatment.
However, chemical oxidation processes (i.e. ozonation, wet. 'certain glycol ethers' category, they must report the glycol ether component(s) that meet the category definition. Section 4 (pages to ) lists oligomeric and polymeric chemicals (for the category formula, R - (OCH 2CH 2) n - OR', n is unspecified) that might contain a glycol ether File Size: KB.
Some commonly used glycol ethers are listed on page 2, along with their abbreviations and chemical names, to help you identify which ones you may be working with. Some brand names for glycol ethers include Cellosolve, R Carbitol, R Dowanol, R and Ektasolve. R Your Right to Know: A product may contain a glycol ether without listing it on the File Size: 59KB.
Samples spiked with a mixture containing glycols and glycol ethers were extracted following the protocol described in Table 2.
Analysis was done by GC-FID using conditions in Table 3. Absolute recoveries were determined by quantitation against a multi-point calibration curve generated fromFile Size: KB.
Abstract Simulated wastewater containing Ni2+, Zn2+ and propylene glycol methyl ether (PGME), a solvent in polymer solution used in metal coating, was treated by a combined electrochemical and.
Hexyl CELLOSOLVE solvent has the characteristic structure of glycol ethers and contains both ether and alcohol functional groups in the same molecule.
As a result, it provides unique cleaning power for removal of both watersoluble and greasy (water-insoluble) soils. Other organics present in concentrations less than ppm. are the oxide, the dichloride, the chlorohydrin and a chlorinated ether.
A propylene glycol wastewater may also contain appreciable concentrations of acetol and acetic acid, both of which are oxidation products of propylene glycol.
A combined photocatalytic and electrochemical treatment of wastewater containing propylene glycol methyl ether and metal ions. ETHYLENE GLYCOL ETHERS, NTP TOXICITY REPORT NUMBER 26 9 For mice, consumption values ranged from to mg/kg for 2-methoxyethanol, to 11, mg/kg for 2-ethoxyethanol, and to mg/kg for 2-butoxyethanol.
Chemical-related mortality occurred in male and female rats administered Size: 8MB. Toxics Release Inventory Guidance for Reporting Hydrochloric Acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) (PDF) (25 pp, MB, January ) [Archived] Hydrochloric Acid Guidance Document (PDF) ( KB, December ) Lead and Lead Compounds.
Toxics Release Inventory Guidance for.Propylene glycol is used as a less environmentally-toxic antifreeze. It is not harmless; it is just less toxic than ethylene glycol used in most antifreeze. Finding a safe disposal method for propylene glycol can present a difficult task.
The best solution is to reuse it, if possible. If this is not possible, then.Pollution Prevention (P2) Spotlight. 2. Commonly Reported P2 Activities for Glycol Ethers.
In14% of facilities reporting glycol ethers also reported newly implemented source reduction (P2) activities. Commonly reported activities inc lude changing paints, coatings, cleaning materials or product formulations to reduce glycol ethers use.