Resulting from the continuous improvements inside our patented aeration system, the Nijhuis i-AERATION program and the sludge thickening/scraper method equipped on our DAF units will bring about DAF flotation sludge which has a superior dry solids content material, therefore minimizing sludge hauling charges. Countercurrent scraping �?for the most successful separation https://robertd566jfy0.wikipublicity.com/user