Wastewater Evaporation Systems

Don't Haul Your Wastewater, Evaporate it On-Site 

Many wastewater streams are mainly water. By evaporating the water portion, up to 95% reduction in volume can be obtained.

Who uses an evaporator? Almost all industries have wastewater that they need to dispose of. Most wastewater can no longer be dumped into the sewer. Many business simply don't want the sewer discharge accountability and liabilities that come with dumping wastewater down the drain.

How it works. Wastewater is batched or continuously fed into an evaporator. Non-emulsified oil and grease are skimmed from the top of the effluent. The wastewater is heated to a boil and turned into a vapor. The vapor is vented through a blower-assisted stack and exhausted to the outside atmosphere. Up to a 95% reduction in volume can be expected. The solids are concentrated and remain in the evaporator. They can be removed through a drain port or scooped from the evaporator. Under floor heating simplifies cleaning because the bottom is flat and sloped and there are no immersion tubes or heaters to clean around.

What can be evaporated? Many waste streams are mainly water. The list of what you can evaporate is almost endless, with a few exceptions. Effluent with high levels of flammable liquids, Volatile Organic Compounds (VOC's), and contaminates such as Mercury should not be evaporated. Testing of wastewater can usually be done in your local area. This test, along with your Material Safety Data Sheets (MSDS), will determine if your waste stream is a candidate for evaporation.

·          Models 1000, 1500, 2500, 5500 Hydro-Vap™ Wastewater Evaporators are constructed of stainless 316, chloride resistant alloys or carbon steel for durability. Wastewater is pumped, batch fed or poured into a Hydro-Vap™ Evaporator. Non-emulsified oils are skimmed and channeled to an external receptacle.

·          Hydro-Vap™ Evaporators are easy to use. The flat floor design and a three inch "drain port" simplifies clean out. Evaporation is economical and reduces wastewater disposal costs. Substantial cost savings can be generated from reduced storage and handling fees, commercial waste hauling, training, insurance compliance and potential fines associated with wastewater spills.

·          The size of the Hydro-Vap™ unit you would need is based on the size of production of the waste stream being generated by your facility. To properly size a Hydro-Vap™ Evaporator, the daily production of wastewater should be documented. The evaporator capacity should be 1.5 times the actual daily waste stream volume. Using 1.5 times as a multiplier accommodates periodic evaporator maintenance, clean out and inspection within a normal shift.

·          Hydro-Blast, Inc. can assist in selecting an evaporator. For proper sizing and construction materials for the wetted parts, a Material Stream Assessment (MSA) must be done for all your waste streams. An MSA will characterize the waste stream with detailed information such as heavy metals, suspended and dissolved solids, VOC's, chlorides, etc. This information will help determine if pretreatment prior to evaporation will be necessary.

Each evaporator comes with the following standard equipment:

·          Adjustable thermostat

·          Redundant safety control systems

·          Evaporator vent stack to facilitate external exhaust of evaporation vapors

·          Exhaust fan to provide positive air control of the evaporating waste stream.

·          Low water shut-off