| business / waste water/ C-Tech General: The C-Tech process is a cyclic activated waste water treatment process whereby carbon oxidation, nitrification, denitrification, and bio-P removal are carried out simultaneously. A process control based on online respirometry allows the omittance of equalization tanks, mixing devices and shock filling as usually required in SBR-systems. Continuous treatment with continuous influent and discharge is achieved by installing two and more parallelly operating basins. Through the PLC system each individual basin can be taken out of service for maintenance purposes without affecting the continuity of the process operation. Within a 4 hour cycle the phases aeration, settling and decanting are repeated continuously.
Thus, all necessary reaction conditions for simultaneous nutrient removal and sludge settling are completed. The phase delay between the basins leads to a continuous process, in which all installed machinery and aggregates are most efficiently used. The relatively short dry weather flow cycle of approx. 4 hrs, resp. 2-3 hrs cycle under wet weather conditions in combination with the selector and the process control allows for simultaneous N/DN and bio-P. Process advantages:
Applications:
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