Step screens are a regular feature on treatment plants throughout New Zealand. We are able to offer an alternative to currently available systems with the Sam McCoy step screen. The Sam McCoy step screens have a deserved excellent reputation for reliability and ability to handle tough operating conditions.

Sam McCoy screens originate from a European design originally built under license for many years at Sam McCoy’s factory in Malaysia. Sam McCoy uses thicker steel as well as deeper and higher steps than most of its competitors. Sam McCoy utilizes high end German manufacturing machinery and each of their screens is supplied with full quality control certificates for materials, fabrication and testing prior to dispatch. Fabrication in Malaysia has the added advantage of short delivery times due to New Zealand.

References are available from installations in Australia and New Zealand.

Milliscreens are screens especially suited to applications requiring high screening efficiency at high volume flows without blockaging issues. Reko Industrial Equipment provide rotary screens built to exacting European standards from their factory in the Netherlands.

The essential component of the internal REKO rotary screen is the wedgewire drum with the inside of the drum acting as the screening surface. As the liquid flows in from the inlet it passes from the inside of the drum to the outside. Solids are retained internally in the drum and transported to the outlet through the rotational movement of the drum.

The liquid passes through as it flows from the inside to the outside. Through this action a self cleaning effect is created. In addition to this a spraying system can be mounted internally or externally of the drum if further cleaning requirements are necessary.

Reko also offer an external fed rotary screen utilizing a similar wedgewire drum for applications with more targeted requirements. With capacities ranging from 10 – 1,000 m3 per hour Reko have a screen suitable for most applications.

Brickhouse is pleased to offer the curved and flat raked inlet screens by Werkstoff + Function to the New Zealand market. Based on one of the oldest screen designs in the wastewater industry this equipment has been optimized to fit the stringent requirements of the European market.

The advantages of curved and flat rake screens is in their simplicity and reliability. With a minimum of moving parts and all bearings above the water line, they are extremely rugged and are practically maintenance free. They are ideally suited for small to medium sized treatment plants or remote locations where other screens such as step screens or basket screens would be too expensive and maintenance intensive. Rake screen gap sizes range from 0.5mm up to 8.0mm, allow for replacement of screens after installation and come as a package as well as an in-channel version. Screw presses are generally integrated into the screen design to wash, compact and dewater the screenings.

With many references from Europe, the W+F screens offer an alternate inlet screen option which may best meet the demands of your treatment requirements.

The Screw (Screenings) Press is a common feature in inlet works, operating unattended and with minimal maintenance.

They are designed to minimize the handling or potential contact with screenings that are deposited in a wet state and having offensive odours. Reducing wet weight also reduces the screenings volume, directly impacting on disposal costs.
Brickhouse can offer screw presses and screw conveyors in combination or separately from the screening systems.

The screw presses and conveyors are built by Sam McCoy and pass through the same rigorous quality control procedure as Sam McCoy’s step screens.

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Microscreening developed out of the treatment of wastewater in Aquaculture, but has now become a leading technology for advanced solids removal.

Microscreens are used as tertiary treatment stage on biological treatment plants where stringent TSS limits have to be maintained even at times of biological process upsets. Their main applications are post clarification, pre-UV disinfection and in some instances as a replacement for traditional sand filtration.

The Rotating Drum Microscreens from IN-EKO are one of the most established, economical and reliable microscreening units on the market. With over 450 installations worldwide the IN-EKO microscreen is well regarded throughout Europe and USA. Operators in New Zealand particularly appreciate its reliability, simple operations and the ability to replace single panel filter cloth sections resulting in low maintenance as well as low capital cost.

Following development of the first continuous backwashing sandfilter the technology was rapidly adopted in Europe and the USA for larger treatment plants. Due to their size and capital costs these filters were nevertheless not suited for smaller plants. This is when the development of a patented new type of continuous sandfilter (TOVEKO®) specifically designed for small to medium size treatment plants and industrial applications occurred.
The TOVEKO system is a continuously backwashed sand filter that measures only 2.3m high. A compact size that means pumping systems can often be avoided through simple gravity feed set-up. TOVEKO® sand filters do not require the large backwash water tanks associated with conventional sand filters.

TOVEKO® sandfilters are particularly well suited for applications in municipal treatment, potable water (especially Fe and Mn removal) and industrial wastewater treatment.

Its small footprint, modular package plant design with its fully automated operation including backwash rate control, make this sand filter the preferred choice for remote treatment plants where high water quality has to be maintained and the regular presence of an operator is not possible.

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Vortex grit chambers are installed in many treatment plants in NZ. The vortex grit system is a pre-treatment system designed to remove grit and silt particles from the incoming sewerage in order to protect pumps and other equipment within a treatment plant from wear, extending their life expectancy.

The Dormarg designed Vortex unit is based on well-known grit chamber designs based on retention and constant velocity principles. Capable of removing grit down to 0.2mm size and having specific gravity of 2.65 or better. Removal rates are 95% of 50 mesh grit, 85% of 80 mesh grit and 60% of 120 mesh grit. Different configurations of pumped discharge or adaptation to gravity outlet can be designed for the removal of grit from the chamber.

There have been many installations of this type of vortex unit throughout New Zealand and also in Australia and Asia, used for pre-treatment removal at municipal treatment plants and also for industrial wastewater effluent applications.

Brickhouse offer the sand washing & classifier system from Werkstoff + Function, a German company that specializes in inlet works equipment for water and wastewater treatment plants.

The W+F sand washing classifier is designed to meet Germany’s stringent organics separation targets. The sand washing classifier is a compact design in stainless steel fabrication with inbuilt sand bed monitoring capability and controlled by standalone PLC.
Traditional grit classifiers only dewater the grit and end up retaining most of the organics. This results in odours, flies nuisance and the requirement for disposing of the grit at landfills.

Regulations in Europe have moved to stringent sand washing standards. In Germany, these standards demand organics concentrations reduced down to either 3% or 5% dependent on the particular installation. The high standards open up cost effective options for disposal of the washed grit.

With increasing disposal costs from screenings and organics contaminated grit it is highly recommended that a cost-benefit analysis be undertaken for all new or renovated grit removal system installations. Payback periods for grit washing equipment of three years or less are not uncommon.

Brickhouse offer the compact unit comprising of inlet screen, screenings wash press and cylindrical grit separator all in one from Werkstoff + Funktion.

The compact unit combines a rake screen of adaptable gap size with an aerated circular grit settling tank. The circular tank ensures very stable grit removal efficiency over a wide range of flows, which is difficult to attain with standard channel type grit removal systems. The system comes with integrated screenings compactions and grit extraction. As an optional extra the system can be fitted with a grease and fat removal system.

The compact unit combines all the necessary inlet functions within the one unit, offering a typical space saving of up to 50%. This makes it not only ideal for restricted sites but also offers large savings on any associated site and building capital costs. With an optional integrated emergency bypass the unit is also capable of reducing potential pipework costs.

All process units are completely enclosed and are designed for low maintenance and energy requirements. The system is built to meet and often surpass the exacting German standards in design, manufacture and regulatory requirements. The W+F Compact Unit is an excellent alternative in a compact package.

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A septage receiving station is a regular feature on treatment plants overseas and they are becoming increasingly important in New Zealand. Septage receivers function to reduce the load to the treatment plant as well as reducing plant maintenance requirements. Experience has shown that European septage receiver systems are not adequate for New Zealand conditions, where septage sludge has a much higher solids content, often resulting in blockages and extremely slow processing times.

The screen offered by Brickhouse has been developed in New Zealand for New Zealand requirements and designed to allow treatment of up to 100m3/h of sludge to 8% solids content, allowing for a possible five minute discharge and turn-around of tankers.

The fabrication of the septage screen is undertaken by Sam McCoy in Malaysia in their state of the art fabrication facility with full quality control certification.

The Brickhouse septage screen is fully PLC controlled and can be fitted with data collation and storage for identifying by operator and tanker. Control and system capacity can be adapted to meet specific client requirements.

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Technofanghi is a company located in Italy and specializes in high quality sludge treatment and dewatering systems specifically designed for small to medium size treatment plants. With their Teknobag® system, Teknofangi have adapted the well known “Geobag dewatering process” into a low-cost, continuous sludge treatment process. The system is based on a coagulation, flocculation and gravity thickening process and is fully controlled by a programmable electronic panel, ensuring optimal process operation.

The system uses an integrated coagulation, flocculation and gravity thickening and dewatering process combined in the one unit. Dry solids content of up to 30% can be achieved, depending on the nature and solids content of the sludge to be dewatered.

The Teknobag system is best adapted for treatment plants for which a larger, expensive and more maintenance intensive sludge treatment system is not suitable. The Teknobag system is the ideal addition to package plants or treatment plants in remote locations as it only requires operator attendance approximately every 3 to 4 weeks.

In production over 25 years and with over 12,000 units sold the Teknobag Draimad is an extremely well proven solution to sludge dewatering.

A modern and economical solution to sludge thickening. Sludge thickeners are widely used in many wastewater and water treatment plants. Sold since 1997 with over 450 installations the Scrudrain® thickeners are supplied as complete assembled and tested units in order to minimise installation time and costs. The Scrudrain® sludge thickeners can handle a few m3/hr to a maximum of 60 m3/hr, depending on the type of sludge and the dry solids content.

A significant amount of R&D has resulted in the compact MONOBELT® – an entirely new patented belt filter press designed to combine thickening and dewatering into one single process. Sized for small and medium size treatment plants, the MONOBELT® system offers cost advantages among other benefits for municipal and industrial
end users.

The MONOBELT® uses an endless belt with spliced joint and no zippers or clips. The second belt of the machine is a filter cloth fixed on a large perforated cylinder. This has the advantage of greatly reducing the traction stresses on the filter cloth, consequently significantly increasing the product life to as much as eight times that of similar systems. The lifetime of an endless belt is about 3 – 4 times longer than a joined one.
Models available up to 30m3/hr. There are currently more than 1,100 units installed in municipal and industrial sewage treatment plants throughout Europe and the world.

Teknofanghi’s long experience in the field of sludge dewatering has led to the development of a complete range of polyelectrolyte preparation and dosing units.

The range includes the CMP semi-automatic series (since 1983) and the fully automatic CAP series (since 1994). With over 6,000 units sold Teknofanghi polydilution equipment is long proven.

The simpler CMP series is most suitable for use in small plants where the flocculant requirement is not continuous and where personnel are available for chemical make-up.

The CAP series was developed for applications in which the polyelectrolyte must be fed on a continuous basis with accurate control of dilution and ageing. This series is for polyelectrolyte on both powder and emulsion base.

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