Wastewater – Etsi

Wastewater treatment with the patented GEH® solution

Trust us for the purification of various types of wastewater. We are committed to you and to environmental protection.

Why it matters

Water resources are effectively protected by wastewater treatment.

The treatment and removal of heavy metals such as arsenic, uranium, vanadium, and other pollutants is both sustainable and economical. No matter what type of wastewater you need treated, GEH Wasserchemie has the right solution for you. This includes process water generated during industrial product manufacturing, leachate from landfills, and municipal wastewater containing environmentally harmful phosphate if left untreated.

GEH® naturally complies with DIN EN 15029 and all legal requirements worldwide. Anyone using the product can be confident they are actively protecting their water resources — while keeping treatment both sustainable and economical.

The technology

GEH®, a high-performance adsorbent against phosphate, arsenic, uranium, lead and more

Granulated iron hydroxide has proven effective wherever wastewater needs to be purified of heavy metals and pollutants before it returns to the water cycle. Our patented GEH® adsorbent material is made precisely from this substance. While heavy metals in water are toxic to humans above a certain threshold, other substances — such as phosphate — cause water bodies to become eutrophic, harming the environment and its delicate balance of flora and fauna.

Innovative adsorbent

Iron hydroxide in granular form

Classic precipitation followed by filtration is one way to remove arsenic, uranium, phosphate and other unwanted substances — but in many cases it is insufficient. An innovative adsorbent that is easy to use and scalable to any size, such as GEH®, removes pollutants directly from raw water or as a final filter after flocculation, reducing them below the detection limit and effectively binding heavy metals for good.

Broad-spectrum removal

GEH® for the removal of heavy metals — and more

A single high-performance media targets a wide range of contaminants across wastewater, groundwater and process-water applications.

As

Arsenic

U

Uranium

V

Vanadium

PO₄

Phosphate

Pb

Lead

Ni

Nickel

Cu

Copper

Sb

Antimony

Special application

GEH® in water remediation

Healthy soil and clean groundwater are the foundation of life. Where a careless past left heavy-metal contamination in the ground — from former refineries and industrial sites — GEH® filters arsenic, lead, uranium, nickel, copper and more from the water. It combines easily with other purification methods for optimal groundwater remediation results.

Every adsorption system is designed and dimensioned individually for its application. Regardless of your needs, EcoTech provides the best possible solution for targeted wastewater treatment — including bed depth, filtration rate, empty-bed residence time and backwash rate — through a personalised on-site consultation.

Chemical composition	β-FeOOH and Fe(OH)3
dry matter content	58% (± 10%)
Iron content, based on dry matter	600 g/kg (± 10 %)
Grain size range	0.2 - 2.0 mm
Undersized grain percentage	< 10%
Total undergrain + overgrain	< 20%
Bulk density, backwashed	1150 kg/m3 (± 10 %)
Specific surface area (BET method)	approx. 300 m2/g

Fill height of the absorber bed	0.8 - 1.6 m
Freeboard height	50% of the fill height
Filter speed	≤ 20 m/h
Empty bed time (EBCT)	≥ 3 minutes
Permissible pressure loss	max. 0.5 bar
Backwash speed	26 m/h (water flush only)
Backwash duration	until the clear water drains

For further information, the following downloads are available for you.

PDF data sheets — click to download.