TeaCup®
Remove, separate, classify and wash wastewater and process solids at a range of municipal and industrial treatment plants.
Overview
The TeaCup® is a versatile system well suited for grit removal or grit washing in many plants. Engineered by Hydro International, the TeaCup is used for grit collection, grit washing, sediment removal on pumped flows and for classifying and washing grit on systems where batch discharge is required. TeaCup has provided industry leading grit removal and classification performance for over 50 years.
While the TeaCup remains the ideal choice for many specific site conditions, the OpTeaCup® – a newer version of the TeaCup – may be what your project needs.
Contact Us to help you decide.
Applications
- Grit removal, concentration, and classification at WWTP headworks
- Snail shell removal from trickling filters
- Grit system replacement and upgrades
- Sediment removal and pretreatment of potable water
- River water intake sand removal for drinking water intake
The TeaCup® is a versatile system well suited for grit removal or grit washing in many plants. Engineered by Hydro International, the TeaCup is used for grit collection, grit washing, sediment removal on pumped flows and for classifying and washing grit on systems where batch discharge is required. TeaCup has provided industry leading grit removal and classification performance for over 50 years.
While the TeaCup remains the ideal choice for many specific site conditions, the OpTeaCup® – a newer version of the TeaCup – may be what your project needs. Contact Us to help you decide.
Applications
- Grit removal, concentration, and classification at WWTP headworks
- Snail shell removal from trickling filters
- Grit system replacement and upgrades
- Sediment removal and pretreatment of potable water
- River water intake sand removal for drinking water intake
Benefits
Reduce downstream wear and maintenance
With guaranteed performance and removal rates of up to 95% of wastewater abrasives you can be confident that the TeaCup® will reduce downstream deposition and significantly reduce excessive mechanical wear – cutting annual maintenance and repair costs.
Increase processing capacity of all your downstream equipment
Without the protection of an Oldcastle Infrastructure Advanced Grit Management® system, grit accumulates in downstream processes and these processes serve as grit storage — clogging them and significantly decreasing their processing capacity. Additionally, excess capacity must be available to take various processes offline and manually remove uncaptured grit that has deposited.
With the TeaCup®, you cut out the grit upstream, reducing downstream accumulation and minimizing the need to pay for expensive process capacity to store your grit.
- An economical alternative to concrete grit chambers for smaller plants
- Durable 304 or 316 stainless steel construction
- No moving parts and all-hydraulic design
- Typically requires 1–5 feet (0.31 – 1.52 m) of headloss
- Requires up to 80% less area than conventional grit chambers
How It Works
Flow enters the stainless steel vessel tangentially at a controlled rate and velocity. The flow regime established in the device forms a free vortex which results in high centrifugal forces and a thin predictable boundary layer. Grit is forced to the outside perimeter or held in suspension until it falls by gravity into the boundary layer which sweeps the grit, but not volatile solids, into the collection chamber at the bottom of the unit.
The concentrated slurry is collected in the chamber at the bottom of the unit. Periodically fluidizing water is added and the grit is purged by gravity in a grit slurry out of the unit. The slurry discharged is clean and ready for dewatering. The water containing the volatile solids exits the top and returns to the WWTP for treatment.
Performance
Removal Rate
- Removes 95% of grit particles 75 micron and larger at the design flow rate
- Less than 20% volatile solids and greater than 60% total solids
Capacity
- Handles flows from 70 gpm to 8 Mgal/d (44 L/s to 30.3 MLD)
- Sizes from 24” to 96” (0.61 to 2.44 m) diameter
- Solids concentration up to 1%
Design Notes
- Open free vortex design
- Simple operation, long product life
- Large diameter easily handles peak flow volumes without clogging
- Prefabricated modular components provide simple installation and maintenance
- Discharges a clean grit slurry with low volatile solids
- Suitable for batch processing or continuous operation
- Standard turndown ratio of 3:1 peak to average daily flow
- Inlet and outlet can be oriented to accommodate many piping configurations
Frequently Asked Questions
Q. My plant only processes flows of 200 gpm (12.6 L/s), is the TeaCup right for me?
A. TeaCup® systems can accommodate flows as low as 70 gpm (4.4 L/s) in a single unit, making it an ideal system for many different plant sizes. Larger TeaCup® units can handle flows up to 8 Mgal/d (30 MLD) in a single unit, or multiple units can be used to process flows from even the largest plants.
Q. Can the TeaCup be used in agricultural or industrial applications?
A. The TeaCup® has been successfully used in both industrial and agricultural applications within certain operating parameters. We’d be glad to help you determine whether the TeaCup® system would be the right solution for your specific application.
Q. Snail shells accumulating in our trickling filters are a big problem for our plant, can the TeaCup system help?
A. The TeaCup® has proven very effective in removing snail shells from trickling filters. In many plants, snail shells can quickly fill up trickling filters and are very difficult to remove with other technologies.
Specs & Downloads
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