How cavitation air flotation generates microbubbles without a saturator, what a Q=200 m3/h CAF unit draws in power against DAF, and where the design fits in papermaking, dyeing and food effluent.
A plant owner's view of difficult industrial wastewater: why single units fail, how CDFU cyclonic flotation, CDOF ozone oxidation and KFM media filtration get combined, and what the Congo-Brazzaville oilfield and refinery projects delivered.
Conventional sand filters harden and blind when they meet oily water. A walnut-shell filter with naturally oleophilic media, deep-bed grading and enhanced air-water backwash runs longer cycles at lower water use. Here is what changes in practice.
Desalter draw-off water carries high oil, resin, asphaltene and severe emulsification. A purely physical train built on a coalescing de-oiler plus CDFU cyclonic dissolved-air flotation handles it without chemicals. Here is how the two configurations diffe
High-chloride biochemical tail water deactivates ordinary precious-metal media fast. KLE-HEC-200-A40 carries a double cerium protective layer and higher metal loading than A20. Three projects - leachate, pesticide and API - show the operating results.
Physical de-oiling gets desalter cut water to low oil but leaves dissolved organics that fail COD consent. KHC-F1001, a carbon-based ozone catalyst on a 1400 m2/g activated carbon carrier, is designed for that residue, with results from three industries.
High salinity and extreme pH destroy most ozone media within months. KHC-F2001 uses a silica-alumina composite carrier for that duty, and three projects - landfill leachate, antibiotic synthesis and refinery polishing - show the operating envelope.
Offshore produced water treatment fails on water balance long before it fails on chemistry. This analysis compares multi-stage dosing flocculation with a purely physical plus advanced oxidation train built on CDFU, SiC, KHC and CDOF units.
Emulsified oil is where most oily-wastewater plants fail. This review compares gravity, flotation, coalescing, centrifugal, filtration, membrane and chemical routes, and sets out where KHC, CDFU and KFM physical units take over from dosing.
Low-concentration biochemical tail water is where conventional catalysts give up: organics are too dilute to drive good ozone transfer, and chloride passivates the active sites. KLE-HEC-200-A20 is built for exactly that band, and three projects show what