Water Recovery for natural gas & ground water - Operation

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Operation

Ground Water Application

Our process includes careful, effective oxidation of bio-organics and pre-filtration of the raw water fed to the Primary Reverse Osmosis (R.O.) skid. The process is automated and includes monitoring, control, and documentation.

Pre-Filtration

The effectiveness of oxidation and pre-filtration stage greatly impacts the performance of the processes that follow. In any metal removal system, it is important that the bacteria and algae are destroyed and denied growth media before filtration. The filtrate from this stage will be devoid of insoluble organics and suspended solids to a <10 micron size.

We have included an automatically switching, dual pre-filter to keep the system on line. A pump drives pressurized water through UV lamps to kill the bugs before entering the selected pre-filter. Once the “A” pre-filter has fully loaded with solids, the valves will switch the flow to the “B” pre-filter and flush the solids from the loaded media in “A”, returning it to available service.

 water recycle

 

The backwash process uses water from the permeate tank to clean the filter media. Our backwash pump drives 150 gallons of clean water up through the off-line pre-filter and floats the media bed. This action scrubs the solids from the heavier media and forces them into a settling tank. The solids are collected in a bag filter for disposal. The solids-free filtrate solution is sent to Tank #1 for further processing.

water recycle

 

All pre-filtered water discharges into the surge tank (Tank 1) with a residual solids size of less than 10 micron. This tank is monitored by an analog level device that sends level information to our PLC in order to balance the system. Our proprietary software not only provides control and balance to the process, it also records the operating data for downloading as text and charts.

Primary Reverse Osmosis

Pre-filtered water, now devoid of suspended solids and biological foulants, is fed through a <5 micron “absolute” filter on the reverse osmosis skid. This final filtration step insures that any “bleed through” or fine silt not captured in the pre-filtration stage does not reach the next stage. Depending on the membrane selected, varying degrees of salts will pass through the membranes. The heavy metals that pass to the effluent are well below 0.6 ppm.

 water recycle

Secondary Membrane Concentration

The concentrated brine rejected in the Primary R.O. skid is collected in Tank 2 and then sent to a Beta Secondary Brine concentration process for further reduction of volume. The higher pressure operation requires special membranes to produce a very low volume, highly concentrated zinc-brine product. The concentrate (secondary brine) from this process will often constitute a volume as low as one percent (1%) of the original feed from the source.

ZLD—Zero Liquid Discharge

Beta has specialized in “closed loop” environmental technologies for almost 30 years. Our unique designs focus on minimal environmental impact with the fastest return on investment. In most cases the best decision is to create products from what was once considered waste. To accomplish the most sustainable solution, Beta provides a complete selection of proven technologies that can be coupled to provide lemonade from lemons.

 

water recycle

 

FOR SALE 

This system was used to process runoff water and was in service for less than 3 months. It is housed in a 20 foot portable container with doors on both ends. It is lighted and heated with integrated junction boxes for simple connection to 3 phase, customer supplied power. All electronics and signals are 24 VDC with the DC power supply integrated into the main control panel.
 
All internal piping is complete with external pipe connections provided for quick field connection. All electronics and controls are housed inside the container (except tank level controls, etc.) The control system can accommodate additional external signals such as level controls and additional digital or analog devices.