Water & Wastewater Treatment

Remove grit and solids to improve water quality and reduce sludge handling costs at water and wastewater treatment plants. Growing populations are placing a greater operational burden on existing water treatment facilities, and both current wastewater treatment plants (WWTPs) and new projects must contend equally with the damaging and costly effects of grit. Solids carried in wastewater accumulate in downstream processes, which reduces plant efficiency as well as causing damaging abrasion to treatment systems--increasing operational and maintenance costs.


Water & Wastewater Treatment
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Preliminary Treatment - Grit Removal

Grit and other solid materials are a costly component of both process water and wastewater, clogging systems, reducing efficiencies and causing abrasion damage and wear that lead to increased cleaning, maintenance and repair.

Effective grit removal removes the abrasive solids and sand before they have the chance to enter other processes, erode expensive equipment, and deposit throughout a treatment plant.

Grit Separators

Grit King® Separator

Remove fine grit to protect downstream processes at small, medium or large wastewater treatment plants.

The Grit King® is a compact, unpowered advanced grit management system that removes 95% of 106 μm particles or larger, preventing costly downstream grit abrasion and deposition.

With no moving parts, requiring less than 150 mm of headloss at average flows and a capacity to handle flows as low as 11 L/s, the Grit King® is a versatile and economical grit removal system that cuts plant maintenance costs.

Headcell®

Remove more, finer grit to protect downstream equipment, increase plant efficiency and cut maintenance and repair costs.

The Headcell® is a stacked tray grit separator that retains 95% of all grit 75 μm and larger - guaranteed.

With a small footprint, no electrical requirements and no moving parts the HeadCell® delivers exceptional and economical solids removal for small, medium or large wastewater treatment plants.

Grit Washing

SlurryCup®

Capture, wash and classify very fine grit to protect downstream processes from abrasion and deposition.

The SlurryCup® uses two levels of separation and classification to capture, wash and classify grit as small as 75 μm from grit slurries, primary and secondary sludge, protecting downstream processes from abrasive wear and clogging.

With no internal moving parts, the SlurryCup™ is a low-maintenance solution that produces clean grit ready for dewatering, minimising organic content and cutting the volume of solids hauled to landfill.

GritCup®

Get efficient, economical grit washing at smaller plants with no washwater requirements.

The GritCup® is a compact, unpowered grit washing system with no moving parts that delivers clean grit ready for dewatering by a SpiraSnail® dewatering system, effectively separating and classifying 95% of all particles 106 μm and larger and 75% of 75-106 μm particles.

The GritCup® is typically used to wash grit collected by primary grit removal systems such as a HeadCell® or Grit King®, and is ideal for smaller plants.

TeaCup®

Remove, separate, classify and wash wastewater and process solids at a range of municipal and industrial treatment plants.

The TeaCup® is a high-performance accelerated gravity grit removal system that has been the benchmark for high-performance headworks grit management since 1976.

Available in a range of sizes and able to accommodate flows as low as 4.5 L/s in a single unit, TeaCup® units can be used to accommodate a wide range of flow characteristics, making it the ideal system for many different types and sizes of plants.

 

Dewatering & Conveying

SpiraSnail®

Get efficient, economical grit dewatering at smaller plants with no washwater requirements.

The SpiraSnail® is a highly efficient screw-type grit dewatering system that delivers 95% removal of all particles 106 μm and larger and 75% of 75-106 μm particles to cut solids handling and disposal costs.

Designed to work in combination with a Hydro International grit washing unit such as a GritCup®, the SpiraSnail® provides effective, affordable grit dewatering ideal for smaller plants.

 

Grit Snail®

Get superior non-turbulent grit dewatering, optimised for fine wastewater grit.

The Grit Snail® is a quiescent dewatering belt escalator that captures and dewaters the fine grit output from a HeadCell®, SlurryCup™ or TeaCup® grit removal system. Providing solids output with low water content, the Grit Snail® reduces solids handling and landfill costs.

Designed to handle very fine grit, the slow-moving belt pulls solids from clarifier water without agitating the water, thereby retaining even very fine particles.

Grit Decanter

Get economical wastewater grit dewatering even at small treatment plants.

The Grit Decanter dewatering bin is a non-mechanical dewatering system designed to retain fine grit with little water content, allowing for cost-effective disposal. The system is custom-designed to match your local disposal truck configurations.

The Grit Decanter is the ideal solution for plants with peak flows of up to 300 L/s for dewatering cleaned output from a TeaCup® or Grit King® separation system.

Grit Classifer

Separate and dewater grit and other pollutants from process water and effluent streams to reduce your solids handling and disposal costs.

The Grit Classifer separates and dewaters the concentrated grit underflow from high performance grit separation devices such as a Grit King® or HeadCell®.

Capable of producing dry grit with low organic content suitable for landfill disposal, the Grit Classifier can handle flows of up to 25 L/s.

Primary Treatment

Lamella*

Remove sediment from wastewater reliably and effectively, using up to 90% less footprint than conventional technologies.

The Lamella Plate Clarifier is a primary clarification device used to treat sewage and industrial waste streams and requires up to 90% less space when compared to a traditional settling tank.


*only available in the United Kingdom

Zickert™ Rotating Sludge Scraper*

Remove sludge and surface scum from circular wastewater treatment settling tanks.

With a drive located on the perimeter tank wall, removing the need for a bridge, the Zickert™ Rotating Sludge Scraper offers major energy, operating and maintenance savings compared to rotating bridges.

Zickert™ Reciprocating Sludge Scraper*

Remove surface scum and bottom sludge from wastewater treatment settling tanks.

The Zickert™ Reciprocating Sludge Scraper provides bottom and surface scraping for rectangular settling tanks with typically little or no adaptation required.

*only available in the United Kingdom


Hydro MicroScreen™

Primary clarification with reduced energy costs in just one tenth of the footprint.

The Hydro MicroScreen™ is a low-energy, small-footprint rotating belt screen that delivers exceptional solids removal from municipal wastewater. It enables operators to increase efficiency and save money by decreasing energy and chemical use, minimising maintenance costs, reduction power requirements for downstream processes, reducing solids handling and disposal costs or recovering material to be converted into energy.

Applications
• Primary treatment.
• Advanced primary treatment for membrane processes.
• Secondary clarification.
• Septage screening following a coarse screen.

 

Secondary Treatment

Lamella*

(in some cases only)

Remove sediment from wastewater reliably and effectively, using up to 90% less footprint than conventional technologies.

The Lamella Plate Clarifier is a primary clarification device used to treat sewage and industrial waste streams and requires up to 90% less space when compared to a traditional settling tank.
*only available in the United Kingdom

Tertiary Treatment

DynaSand®*

(solids removal)


High-quality suspended particle filtration from a small-footprint filter bed with no moving parts or backwash equipment requirements.

DynaSand® is a continuous upflow vertical sand filter for low-power, low-maintenance filtration of potable water and tertiary treatment of final effluent discharge from wastewater treatment plants.

DynaSand® handles high concentrations of suspended solids efficiently without requirements for settlement tanks and has a 90% smaller footprint than the equivalent horizontal filter bed.

Applications
• Potable water treatment.
• Treatment of wastewater before discharge.
* Only available in the United Kingdom.

DynaDisc®*

(solids removal)

High-performance process and wastewater treatment in a single self-contained unit.

Providing a large area for filtration in a compact process vessel, the DynaDisc® delivers high-volume, low-headloss disc filtration for tertiary wastewater treatment.

Benefits

  • Can be supplied as freestanding or in situ
  • Fewer parts – the DynaDisc® has 8 or 10 cassettes per disc, which is several times fewer than in disc filters from other manufacturers. This means faster replacement and less weight.
  • Filter cloth fastened directly to the cassette body - keeps the seal length to a minimum.
  • Strong cassette body – allows high tension on the filter cloth, prolonging its service life.
  • Integrated level tank – provides a long level weir for the filtrate which reduces fluctuations at different water flows.
  • The filtrate in the level tank is used for backwash – less risk for biological flocks compared to when the backwash water is taken from a much larger concrete tank.
    The chemical solution for cleaning the filter cloth is collected in the level tank, thus reducing acid corrosion of the concrete.


*Only available in the United Kingdom.

DynaSand® Oxy *

Continuous sand filtration system with air addition to facilitate removal of ammonia and phosphates from wastewater.

DynaSand® Oxy delivers ammonia, phosphate, TSS and BOD removal in a single stage for tertiary treatment of final effluent discharge from sewage and industrial wastewater treatment plants.

Benefits

  • Ammonia, phosphate, suspended solids and BOD removal in a single stage
  • Low ammonia consents achieved
  • Peak inlet concentrations handled
  • Efficient, easy operation
  • Stand-alone addition to the works
  • Proven technology
  • Free standing - 'built-in' concrete basin units available

* Only available in the United Kingdom.

DynaSand® Deni *

Continuous sand filtration with carbon addition to facilitate removal of nitrates from wastewater.

DynaSand® Deni is a low-energy, low-maintenance vertical sand filtration plant for nitrogen removal from final discharge.

Benefits

  • Continuous process with the addition of nitrate removal
  • Nitrate, suspended solids and BOD removal in a single stage
  • Space saving
  • No "bed-pumping" required - N2 generated is removed by the air-lift pump
  • Predators cannot survive the action of the air-lift pump and sand washer
  • Offers scope for automatically controlled addition of carbon, which prevents increase in BOD caused by over-dosing
  • Stand-alone addition to the works

* Only available in the United Kingdom

Sludge Treatment

Hydro-Sludge™ Screen

Remove and compact solids from sludge to reduce solids handling costs and improve downstream treatment efficiency.

The Hydro-Sludge™ Screen is a superior sludge screening solution for municipal and industrial applications, delivering better performance and easier maintenance.

Benefits

  • Able to handle a dry solids capacity of up to 9%, the Hydro-Sludge® Screen screens and removes solids early on in the process, minimising the clogging that would otherwise reduce downstream treatment efficiency.
  • Easy-maintenance standard design and optional enhanced maintenance package.
  • Cut the cost of screened solids management, transport and disposal with screenings up to 40% total solids.

 

Sludge & Scum Scrapers

Zickert™ Rotating Sludge Scraper *

Remove sludge and surface scum from circular wastewater treatment settling tanks.

With a drive located on the perimeter tank wall, removing the need for a bridge, the Zickert™ Rotating Sludge Scraper offers major energy, operating and maintenance savings compared to rotating bridges. The Zickert™ Rotating Sludge Scraper can be used on primary, secondary, humus and activated sludge processes

Benefits

Control odour
As the Zickert™ Rotating Sludge Scraper has a very low profile and a fixed electrical motor point, it is simple to cover and uses much less headspace. On average 80% less air requires treatment with this system.

Safe and economical operation
The Zickert™ Rotating Sludge Scraper does not require a bridge, walkway, handrail, or slip rings, making the system particularly economical for large tanks which would normally require big structures.

* Only available in the United Kingdom.


Zickert™ Reciprocating Sludge and Scum Scrapers *

Remove surface scum and bottom sludge from wastewater treatment settling tanks.

The Zickert™ Reciprocating Sludge Scraper provides bottom and surface scraping for rectangular settling tanks with typically little or no adaptation required.

Benefits

  • Low profile enabling sedimentation tanks to be covered for odour control
  • High operational reliability
  • Simple to install
  • No adaptation needed for most tanks and bottoms
  • Continuous or intermittent sludge transportation
  • No interruption of sedimentation process
  • Adjustable scraper speeds
  • Integral sludge thickening
  • Minimal headroom required

* Only available in the United Kingdom.

Conveyancing

Hydro-Brake® Drop

Safely convey water or sewage while protecting infrastructure from damage, vibration, odour and noise.

Hydro-Brake® Drop is a self-activating conveyance and flow control system that dissipates the energy of dropping water, enabling customers to convey water from great heights while preventing the damage and nuisance effects associated with falling water.

Benefits

  • Drop flows of up to 5,000 L/s can be transferred safely through drop heights of up to 100 m.
  • The use of multiple pipes can accommodate even higher flow rates.
  • Minimise erosion damage
  • Control odour and corrosion
  • Install and retrofit easily - no moving parts and no requirement to keep an air core within the drop pipes, so it can be installed easily and cheaply either as part of a new construction project or as a retrofit to an existing system. Its integrated access and small pipe sizes minimise excavation costs, shaft diameters and the need for a separate access shaft. The system also benefits from a compact and simple-to-construct inlet chamber with no complicated curves or benching required.


Meva Screw Wash Press *

Reduce the weight and volume of screenings, cutting solids handling and disposal costs.

The Meva™ Screw Wash Press reduces the weight and volume of screenings. When combined with the Meva™ Counter Pressure Screw it delivers shredded screenings with up to 60% dry solids, reducing disposal costs and ease of incineration.

* Only available in the United Kingdom.


Meva Counter Pressure Screw *

Reduce disposal costs for sludge screenings through advanced dewatering techniques.

The Meva™ Counter Pressure Screw reduces sludge screenings volume and weight by up to 50%. Further reductions are possible when combined with the Meva™ Screw Wash Press, delivering shredded screenings with a dry solids content of up to 60% and offering further reductions in disposal costs.

* Only available in the United Kingdom.


Meva Shaftless Screw Conveyor *


Efficiently convey high volumes of sludge screenings and other wet and dry solids in waste and industrial processes.


The Meva™ Shaftless Screw Conveyor combines high transport capacity with a low inlet height to provide options for a wide range of applications including screenings and both thickened and dewatered sludges.


* Only available in the United Kingdom.


N.B. The information contained in this entry is provided by the above supplier, and does not necessarily reflect the views and opinions of the publisher