What is the best method to recover hydrocarbons from production and refinery waste lagoons?

Is the combination of chemistry + electrocoagulation the best way to remove selenium from oil+gas production and refinery waste water?

Can crude oil recovered from oil and gas production waste lagoons be considered as "green", since the recovery cleans up the environment?

Systems now available from Global Advantech to remediate water-based drilling muds - CODs to below 100. globaladvantech.com

Acid Mine Drainage Water Treatment

Global Advantech’s system for the treatment of acid mine water removes sulphates and other cations in water discharges from working and abandoned mines and other industrial works. These cations both contribute to acidity and solubilise heavy metals into solution, making these discharges hazardous to the environment.

The acidity in mine discharge water is mainly produced by the oxidation of sulphide minerals, in particular iron pyrite (iron disulphide - FeS2), when they are exposed to oxygen in the air and water. This reaction of pyrite with oxygen and water produces a solution of ferrous sulphate and sulphuric acid. These ferrous irons may undergo oxidation to ferric ions, increasing acidity still further. Additionally, iron and sulphur oxidising bacteria are known to catalyse these chemical reactions at low pH and are therefore capable of increasing oxidation reaction rates by several orders of magnitude over natural oxidation processes. This resultant acidity then solubilises metals into the water, which is discharged.

Global Advantech’s treatment systems combine chemical conditioning with electrocoagulation treatment to remove sulphate and carbonate cations, heavy metals and suspended solids, whilst minimising the production of waste by-products. Global Advantech has a patent pending on the process.

Volatile Organic Compound Abatement and Odour Control Products

Products for controlling volatile organic compounds and other odorous compounds in the air released during the cleaning of crude oil storage tank, land remediation, operation of sewage treatment works, etc.

Code	Product	Details
DC140	VOC ABATEMENT/ DEODORISER CONCENTRATE	· Control and neutralise odours and emissions around and during work on process plant, refineries, oil storage depots, site remediation, etc. · Solubilises hydrocarbons, sulphides, mercaptans, etc., from air into liquid phase on contact with aerosol, neutralising odours · Usage: dilute 1 part in 200 parts of clean water · Contains biodegradable surfactants and solvents, derivatives of long-chain fatty acids, perfume (no artificial musks)
DC141	VOC ABATEMENT/ DEODORISER + AIR SANITISER CONCENTRATE	· Control and neutralise odours and emissions around and during work on sewage and wastewater treatment works, landfill sites, site remediation, etc. · Solubilises hydrocarbons, sulphides, mercaptans, etc., from air into liquid phase on contact with aerosol, neutralising odours · Usage: dilute 1 part in 200 parts of clean water · Contains biodegradable surfactants and solvents, derivatives of long-chain fatty acids, perfume (no artificial musks) · Additionally contains a synergistic blend of biocides to formulated to kill bacteria and fungi in contaminated water aerosols produced by plant and works, etc., on contact with aerosol of product solution
DC142	VOC ABATEMENT/ DEODORISER CONCENTRATE	· Control and neutralise odours and emissions around and during work on process plant, refineries, oil storage depots, site remediation, etc. · Solubilises hydrocarbons, sulphides, mercaptans, etc., from air into liquid phase on contact with aerosol, neutralising odours · Usage: dilute 1 part in 500 parts of clean water · Contains biodegradable surfactants and solvents, derivatives of long-chain fatty acids, perfume (no artificial musks)
DC143	VOC ABATEMENT/ DEODORISER + AIR SANITISER CONCENTRATE	· Control and neutralise odours and emissions around and during work on sewage and wastewater treatment works, landfill sites, site remediation, etc. · Solubilises hydrocarbons, sulphides, mercaptans, etc., from air into liquid phase on contact with aerosol, neutralising odours · Usage: dilute 1 part in 500 parts of clean water · Contains biodegradable surfactants and solvents, derivatives of long-chain fatty acids, perfume (no artificial musks) · Additionally contains a synergistic blend of biocides to formulated to kill bacteria and fungi in contaminated water aerosols produced by plant and works, etc., on contact with aerosol of product solution
DC144	UNPERFUMED VOC ABATEMENT/DEODORISER CONCENTRATE	· Control and neutralise odours and emissions around and during work on process plant, refineries, oil storage depots, site remediation, etc. · Solubilises hydrocarbons, sulphides, mercaptans, etc., from air into liquid phase on contact with aerosol, neutralising odours · Usage: dilute 1 part in 500 parts of clean water · Contains biodegradable surfactants and solvents, derivatives of long-chain fatty acids

For more information, please see: http://www.globaladvantech.com/Decontamination/Decontamination.htm

Natural Biostimulant Drain and Greasetrap Cleaner WT950

Global Advantech’s Natural Biostimulant Drain and Greasetrap Cleaner WT950 contains balanced concentrations of biostimulants extracted from plants (amino acids, etc.) and nutrients. WT950 has been formulated to optimise the natural conditions required for rapid biodegradation of fats, oils and grease by indigenous aerobic micro‑organisms keeping, drains and greasetraps clear and free from blockages. The benefits of WT950 are:

• Ease of application
• Lower maintenance costs
• Reduced risk of blockages and overflows
• Noxious odours kept to a minimum
• Reduced risk of being fined due to discharge of untreated effluent from small, packaged treatment plant 

Global Advantech’s Natural Biostimulant Drain and Greasetrap Cleaner WT950 may be used to treat and improve the operation of greasetraps, septic tanks and small, packaged wastewater treatment plant in rural locations, including rotating biological contactors.

Global Advantech’s products contain no enzymes or micro‑organisms. Enzymes are normally unstable and breakdown in aqueous solution and are rapidly deactivated by dirt and chemicals. When cultured bacteria are introduced into a new environment generally they do not survive in competition with the already adapted, indigenous population of natural micro-organisms.

For more information, please see

http://www.globaladvantech.com/Decontamination/PG007%20Decontamination%20and%20Hydrocarbon%20Recovery%20Product%20Guide%20EN%2031.pdf

Advantages of aqueous washing of drill cuttings over thermal desorption

The following table is a comparison between Global Advantech's water-based cavitation scrubbing system and conventional thermal desorption for the removal and recovery of base oil from drilling cuttings:

	Global Advantech aqueous hydrocarbon recovery system	Thermal Desorption (as used for oil-based mud drill cuttings)
Energy requirement	120KW (peak electricity demand)	1,000KW (750KW diesel engine + electricity demand)
Hydrocarbon recovery	Most, no degradation	Most, with thermal degradation
Gaseous  emissions control for combustion products + plant exhaust	N/A	Required
Carbon footprint	Low	Very high
Environmental impact	Minimal	Very high
Freshwater requirement	None, process works with sea water	Cooling, emissions abatement
Water treatment system	Integral Oil, BOD+COD removal	Additional Oil, BOD+COD removal required
ATEX configurations available	Yes	No
Building requirements	Self-contained in ISO containers, with integral bunds	Building with concrete floor and steel support structure for plant required
System capital cost	£0.6million (5 tonnes/hour)	£3.0million (3 tonnes/hour with 0% moisture content, dropping to approx. 1 tonne/hour with 15% moisture content)

For more information, please see: http://www.globaladvantech.com/Oilandgas/Oilandgas.htm

Advanced Oxidation

Advanced electrochemical oxidation is modification to the electrocoagulation process, where oxidising agents and catalysts are introduced into wastewater and effluent before it enters the cells. It oxidises dissolved organic^** and ammoniacal compounds, sulphides and mercaptans, etc., to carbon dioxide, water, nitrogen and simple salts, which were not removed by electrocoagulation. Advanced electrochemical oxidation cells are normally installed in wastewater and effluent treatment plant inline after electrocoagulation cells.

Global Advantech’s advanced electrochemical oxidation cells are built to the same hydrodynamic efficient physical design as the electrocoagulation cells. These cells may be fitted with either iron (for electro-Fenton oxidation) or titanium electrodes depending upon the electrochemistry chosen to oxidise contaminants/pollutants.

^**Membrane filtration or aerobic biological treatment is required to remove volatile fatty acids

http://www.globaladvantech.com/Decontamination/Decontamination.htm

Electrocoagulation Applications 2

 

Description	Fats, oils, greases (FOG)	BOD+COD   C, NH3, H2S	Bacteria, algae, larvae
OIL + GAS
Drilling platform waste water  + slops, etc.		X	X
Flowback water		X
Produced water		X
Refinery process + storage tank + ground water		X	X
Distribution depots storage tank + ground water		X	X
Platform + structure decommissioning		X	X
MARINE + TRANSPORT
Tanker + ship bilge water		X	X
Tanker ballast water		X	X
Cruise liner wastewater	X	X	X
MINING + MINERALS
Mine discharge water + tailings ponds		X	X
Mineral and precious metals recovery (gold, platinum, etc.)		X
Process water		X
Cooling water		X	X
Precious metals recovery from process discharges
Mineral recovery (e.g. clays)
CHEMICAL PRODUCTION
Process water		X
Cooling water		X	X
Process water		X
Cooling water		X
WASTE MANAGEMENT
Landfill leachate	X	X	X
Intensive animal production	X	X	X
Anaerobic digestate	X	X	X
Municipal waste autoclave discharge	X	X	X
WATER TREATMENT
Prior to reverse osmosis, membrane filtration	X	X	X
FOOD PROCESSING
Process water	X	X
Cooling water	X	X	X
Recovery of fats, oils + greases	X	X
DISTILLERIES, BREWERIES, WINERIES
Process water	X	X
Cooling water	X	X	X

 For more information: http://www.globaladvantech.com/Decontamination/Decontamination.htm