Water and air are embedded in all of our economic, social and spiritual involvements across the globe.
Then consider a solution
Just one of many – a mobile waste water treatment facility.
Optineo Group is currently developing a mobile unit that handles waste water containing large amounts of suspended solids and heavy metals. Suspended solids cause the water to have increased turbidity which reduces its transparency. Water with high turbidity often occurs at industrial sites with operations such as mining, construction or blasting and can reach values up to 1000 NTU. A typical discharge standard is around >10 NTU, which means that the turbidity in the water must be reduced.
The technology behind the mobile waste water plant is based on an organic polymer that binds to the suspended solids, causing these to cluster together and sink to the bottom. This process is known as coagulation and flocculation where coagulation means that the charge of the particles are neutralized which allows them to bind together in a process known as flocculation. By clustering the suspended solids into larger particles it is easier to separate them from the water.
There are many ways to separate particles from water. Conventional methods involve sand filtration or “dead end” filtration using a membrane with micro- or nano-sized pores. “Dead end” filtration means that the membrane is positioned at the end of a pipe, perpendicular to the flow of the water. With these filtration methods the filters quickly become clogged due to the large amounts of suspended solids in the water. We are striving to reduce the amount of service needed to clean the filters and are working with a membrane that allows the water to flow parallel to the filter. This lets the clean water pass through the membrane while larger particles continue in the direction of the flow, known as a cross-flow filtration. By using this method the downtime for cleaning procedures is greatly reduced and the lifetime of the filters will be increased.
Furthermore, the industries producing waste water desperately want to be able to measure the heavy metal concentrations in the treated water in order to assure that no illegal waste is being deposited. A water sample sent to a lab can take several days or weeks to analyze and that will lead to large amounts of downtime. Here, we want to be able to continuously measure the concentration of specific heavy metals in order to reduce that downtime and keep production at a maximum. This is solved by using continuous heavy metal sensors located within the plant itself which constantly monitor contamination levels.
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