H2O Scientific

• Clarification is the process to remove suspended solids from water which is done by Clarifier. It is the economical and an essential part of effluent treatment plants and other raw water treatment plants. Depending upon the plant, the clarifiers are available in wide varieties of shapes. In large scale wastewater treatment facilities, large circular open-air clarifiers are preferred.

Sewage Treatment Plants are used to treat the wastewater received from domestic, commercial and industrial sources, by removing toxic materials that may otherwise cause serious damage to the environment. The system outlet is an environmentally safe fluid waste stream; which can either be re-used for many applications or drained into sewer without causing damage to the environment.

H2O Scientific offers an entire spectrum of sewage treatment plants that clean the wastewater using advanced technology based processes such as

Ø Sequencing Batch Reactor (SBR)

Ø Membrane Bioreactors (MBR)

Ø Mixed Bed Bio Film Reactor (MBBR)

Ø Chemical Based Reactor

Ø PVA Gel technology

Wastewater treatment plants serve as a critical component of modern society, protecting the public from pollutants which may be present in sewage and effluent from industrial operations. The most widely used method of wastewater treatment is biological treatment using bacteria to break down organic wastes. Properly treated wastewater is returned to the environment for reuse.

A wastewater treatment plant generally consists of primary, secondary, and sometimes even tertiary treatment. For example, in most sewage treatment plants the primary treatment consists of sedimentation tanks; the secondary treatment means microbiological decomposition or bio-decomposition. Further stages may include micro filtration, ultra filtration or nano filtration for removal of micro-organic particles or ion exchange for hardness or heavy metal ions or activated carbon for organic molecules.

• A mixed bed exchange has both cation and anion resin mixed together in a single vessel. As water flows through the resin bed, the ion exchange process is repeated many times, “polishing” the water to a very high purity. During regeneration, the resin is separated into distinct cation and anion fractions. The resin is separated by back washing, with the lighter anion resin settling on top of the cation resin. Regenerate acid is introduced through the bottom distributor, and caustic is introduced through distributors above the resin bed. The regenerate streams meet at the boundary between the cation and anion resin and discharge through a collector located at the resin interface. Following regenerate introduction and displacement rinse, air and water are used to mix the resins. Then the resins are rinsed, and the unit is ready for service.
• Counter flow and mixed bed systems produce a purer water than conventional cation-anion demineralizers, but require more sophisticated equipment and have a higher initial cost. The more complicated regeneration sequences require closer operator attention than standard systems. This is especially true for a mixed bed unit.

• Used as a polishing unit, the mixed bed has less than1 micro siemens quality.