Global Water & Energy, part of Ekopak Sustainable Water products

GWE’s direct fire wastewater heater unit, CALORIX, is a new development for efficient wastewater heating without the use of heat exchangers.

GWE’s SUPERFLOT – AIR can be used for pretreatment of wastewaters via solids, fats, oils, and grease (FOG) removal, or for sludge separation after an aerobic treatment process. In tertiary treatment applications, the SUPERFLOT – AIR system can be used in combination with coagulant/flocculant dosing to meet strict effluent requirements for solids (TSS) and phosphorus before the discharge to the surface waters.

SUPERFLOT – GAS for the best solid-liquid separation in anaerobic wastewater treatment systems. The GWE SUPERFLOT – GAS system is used for the highly-efficient removal of anaerobic biomass from the effluent of an anaerobic treatment system. Within the unit, the biomass from the anaerobic reactor is separated from the treated effluent via a Dissolved gas Flotation (DGF) process.

For superior separation of certain types of settleable solids such as anaerobic sludge from water, GWE developed the compact crossflow SUPERSEP – CF system. This system is a unique type of lamella separator (parallel plate separator) with modular plate package modules. Its design is similar to the topworks separation system used in our ANUBIX anaerobic reactors and thus is based on a principle proven in hundreds of full-scale applications and decades of performance history.

The GWE SUPERSEP-DF system is ideally suited to treat large volumes of water containing a relatively low concentration of solids. This clarifier is a special parallel-plate separator available in standardized sizes and separation modules. Its design has been optimized to remove well-settling solids and thus is not suited for biological sludge thickening.

ANUBIX – T is an ultra-high loading-rate system utilizing expanded granular sludge bed (EGSB) technology. It is suited for high-strength wastewaters with COD (Chemical Oxygen Demand) values of up to around 25,000 mg/l, with low suspended solids (TSS) and fat, oil and grease (FOG) content.

In contrast to the conventional UASB reactor ANUBIX – CES system, with a built-in three-phase separator at the top of the reactor which diverts the biogas and retains solids, in this reactor, sludge separation is performed externally in a special lamella type separator, the GWE SUPERSEP – CF. The effluent of the sludge separator flows by gravity into any post-treatment that might be required.

Now in its seventh generation since 1979, the ANUBIX – B reactor has proven to be highly reliable (more than 200 plants are currently in operation) and capable of handling high loading rates (up to 25 kg COD / m3d). However, to allow for contingencies and to maximize the efficiency of COD removal, the ANUBIX -B reactor is usually designed for lower loading rates.

The GWE ANAMIX is a completely-mixed form of anaerobic reactor, designed to maximize the contact between the biomass and the waste, to optimize digestion performance. One of the oldest digester configurations, it is also one of the best in terms of applicability to different wastes. No waste is too strong to employ the technology and with two different operating modes and many different forms of biomass retention, the ANAMIX is an extremely flexible process.

The FLOTAMET process consists of a mixed anaerobic reactor, GWE’s ANAMIX, followed by a sludge flotation – GWE’s SUPERFLOT – GAS. Anaerobic sludge separation via flotation works particularly well in applications with high suspended solids (TSS) and/or fats, oils and grease (FOG) concentrations or with salt-rich wastewaters. It is suited for wastewaters with COD values up to 100,000 mg/l and even higher, and can handle single waste streams or a combination of several.