Updated: July 2002

1. Purpose

The HYDRO-X is a solid and liquid separator capable of settling and separating coagulated flock and filtering at the same time. Conventional coagulation sedimentation systems coagulate solids carried by influent to form flock, separate flock from influent by a rapid coagulation sedimentation device, and filter the supernatant by a rapid filtration column, etc. The functions of the two devices can be carried out by the HYDRO-X simultaneously. The quality of water treated by the HYDRO-X is excellent because special floating filter material is used for the HYDRO-X.

2. Characteristics and Performance

1) Separation of solids from water and filtration are carried out simultaneously.
2) The floor space is about 50 % of that required by conventional systems.
3) The terrain of the installation location is not limited.
4) The treating rate per unit area can be 3 to 10 times as high as that of conventional systems.
5) Back washing is easy and complete, and the amount of back washing water is small.
6) The installation period is very short because the system is pre-fabricated.

3. Features

The HYDRO-X is a column type of solid and liquid separator as illustrated. Floating filter material is plastic granules formed by a special process to a diameter of 0.2 to 0.4 mm. It is filled in the upper part of the column into a state of floating in water. Influent carrying coagulated flock is fed from the middle part of the HYDRO-X. The influent flows upwards toward the floating filter material. Solids settle by gravity on the bottom of the HYDRO-X. Slurry accumulated on the bottom is carried to an external sedimenting thickener at regular intervals controlled by a timer. The fine flocks not settled by gravity flow upwards through the floating material and settle. The treated water is delivered out from the upper outlet port. Clogging and contamination of the filter material are removed by an unique powerful filter material washing mechanism.

4. Flow Chart

Comparison of HYDRO-X with Conventional Systems

- Flow Chart of System Using HYDRO-X