OIL WATER SEPARATORS. We thank you for your valued enquiry and have pleasure in submitting our quote/proposal as follows: PRICELIST FOR:

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Bonnie Atkins
5 years ago
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1 We thank you for your valued enquiry and have pleasure in submitting our quote/proposal as follows: PRICELIST FOR: OIL WATER SEPARATORS

2 Oil water separators are typically considered very simple devices. However, several factors that could potentially affect safety, efficiency, and proper management must be given careful consideration prior to the installation or modification of any oil water separator or separation system: 1. General Overview Separators are gravity separation devices designed by using Stokes Law to define the rise velocity of oil droplets based on their density and size. The design of the separator is based on the specific gravity difference between the hydrocarbon and the waste water because the difference is much smaller than the specific gravity difference between the suspended solids and water. Oil water separators purpose is to recover hydrocarbons that have segregated from emulsion in a gravity waste water separation plant. 2. Design Calculation to achieve optimal segregation To calculate the size of an empty vessel gravity separator, it is first necessary to calculate by the use of Stokes's Law the rise velocity of the oil droplets. The size of the separator is then calculated by considering the path of a droplet entering at the bottom of one end of the separator and exiting from the other end of the separator. Sufficient volume (residence time or retention time) must be provided in the separator so that an oil droplet entering the separator at the bottom of the inlet end of the separator has time to rise to the surface before the water carrying the droplet exits the opposite end of the separator. We can confidently predict that the separator will meet the effluent standards necessary under the law 3. Flow Rate In general, separators is sized by the flow rate verses the separation chamber's effective surface area (or projected surface area in the case of a "coalescing" or parallel plate type separator). Therefore, the effectiveness of any oil water separator is affected by the flow rate. The slower the flow, the better the results. 4. Design Capacity An oil water separator has upper limits to the amounts of oil and sludge that can effectively accumulate while it is in operation. If too much oil accumulates in the receiving and middle chambers, it may flow into the wastewater outlet chamber and end up being discharged to the environment. Proper oil water separator design will allow for the removal and storage of accumulated oil and sludge from the separator to ensure that the accumulated products do not affect the operation of the separator. 5. Emulsifying Agents Detergents and soaps designed to remove oily grime from equipment, vehicles, or other components can adversely affect the operation of a gravity oil water separator. These types of surfactants, or "emulsifying" agents, are specifically formulated to increase the dispersal of oil into water, which is why they are such good cleaners. When these soapy wastewaters enter an oil water separator, it takes significantly longer for the oil to separate, if it can, from the water. Excessive use of detergents can render an oil water separator inefficient by completely emulsifying oils into the wastewater stream and allowing them to pass through the system. Low-emulsifying soaps are available that allow oil separation to occur more quickly after the soapy water enters the oil water separator.

3 6. Maintenance Practices The ability of oil water separators to function properly depends upon the timely performance of required service and maintenance. Oil/water separators must be monitored and maintained by competent personnel who understand how the systems operate. Oil/water separators should be given the same close attention given to any other important piece of equipment. The operators, users, and maintainers of the oil/water separator must clarify who will be responsible for monitoring, inspecting, maintaining, and servicing the system. Frequent inspections should be made of the system and all associated piping, valves, etc. to prevent operational and mechanical failures or inefficiencies. Sludge and oil need to be periodically removed from the oil/water separator to keep it operating properly. Additionally, leaks from oil/water separators can result in environmental pollution, which can trigger costly investigative studies and cleanups. Rigorous implementation of an OWS inspection and maintenance plan can prevent discharges from the oil/water separator that may contaminate the environment. 7. Suitability of Oil Water Separation System to Process An oil/water separator designed and installed to meet a past process requirement may no longer be suitable when process requirements change, and/or the original maintenance plan is no longer followed. An oil/water separator that is put to a use for which it was not originally designed may be damaged or may not function properly, and could become an environmental liability. For example, an oil/water separator designed to receive the wastewater discharge from a small engine wash rack will not be able to properly treat larger wastewater volumes from washing the exterior of locomotives. Process changes can also result in changes to the physical/chemical makeup of the wastewater being treated by an oil/water separator. Finally, process changes may also necessitate the modification of storm water and wastewater drainage systems. Such systems should remain separate from each other because excessive drainage of storm water to an oil/water separator could significantly impair its operation and efficiency. 8. Contaminants Contained in the Wastewater Stream Metallic particles in the wastewater will settle into the sludge at the bottom of the oil/water separator. Solvents or fuel compounds may also be entrained in the oil/water separators' sludge. This sludge could require management under the Waste Act as a hazardous waste if it exhibits certain toxicity characteristics. Therefore, it is important to prohibit the discharge of certain types of potential contaminants into an oil/water separator, and to regularly analyse sludge samples to determine toxicity prior to disposal. To reduce the accumulation of sludge, floors should be dry-swept before washing. General improvements in spill/drip control and containment of hazardous materials and oils will also reduce the amount of contamination in oil/water separator discharges. 9. Advantages of ENBITEC OWS/TP OWS Compared to competitors: The additional depth on ENBITEC separator allows for higher KPA pressure at the underflow level, thus increasing separation. Higher flow rate allows for more effluent being handled. The increased surface area of the polypropylene coalesces; increase the hydrocarbon probability to bind with the Polypropylene coalesces. Maintenance intervals are reduced due to increased capacity.

pack separator) Applications: o Low to medium flow

4 10. Types of Oil Water separators available: ENBITEC manufacture two types of Separators: CPOWS (Coalesce pack separator) Applications: o Low to medium flow applications o Models available 300LpH 600LpH 1 100LpH 2 500LpH

5 TPOWS (Tilted plate & Coalesce Oil Water Separator) Applications: o High flow applications o Models available 5 000LpH LpH LpH LpH

6 10 Previous installations illustrations :

7 Thank you and we look forward to your further instruction Lourens Redelinghuys

TechNews. Part 2: Creative Solutions to Secondary Containment at Electrical Substations December 2018

TechNews. Part 2: Creative Solutions to Secondary Containment at Electrical Substations December 2018 TechNews Part 2: Creative Solutions to Secondary Containment at Electrical Substations December 2018 Wastewater storage tanks and oil/water separators may be used as part of an electric power facility