CHEMICAL FREE WASTEWATER RECYCLING AND WASTEWATER TREATMENT
Plants with sewer discharge compliance issues can use the ultra-filtration capabilities of the Cera-Pure System for chemical free treatment of the wastewater. The resultant filtered water can be used as recycled water in the plant. Recovery rates for recycled water can be as high as 90% of the water processed through the Cera-Pure system, with the remaining being sludge for disposal.
To use the Cera-Pure System most effectively, wastewaters should be segregated into black water and dischargeable gray water. In laundries, split trenches work best. The black water is processed through a Shaker Screen to the finest micron level possible, generally about 150 microns. This filtered black water is discharged into a cone bottom equalization tank. Wastewater is pumped, from an intermediate level in the equalization tank, to the Cera-Pure System, where prefilters remove entrained solids down to the 5-10 micron level.
This filtered water is then pressure fed into the circulating loop of the ceramic filter module for final separation. Both high pressure and high velocities are used to separate the wastewater into filtrate water, and unfiltered concentrate water. Continuous reverse flow shock waves dislodge accumulated material from membrane pores maintaining filtrate flows. The filtrate can now be recycled for use in the plant. The filtrate water is usually within a few degrees of the incoming unfiltered water temperature. Concentrate water is returned to the equalization tank for mixing with incoming black waters and re-processing.
At the end of the processing day, the equalization tank is allowed to settle out. Most suspended solids will settle out over night. Any free oils will float to the top. Before start up in the morning, the settled sludge is pumped out to a sludge storage tank along with floating oils. At this time, the system is ready to begin processing plant wastewater again.
