The preparation and dosing of chemical reagents is a key stage in water treatment and sludge dewatering. Through controlled dosing of flocculants, coagulants, milk of lime and pH correctors, chemical dosing conditions the process water and sludge, promoting particle aggregation and improving the filterability of more difficult sludges.
Designed for controlled reagent preparation and dosing, our dosing systems range from powder dosing units to palletised liquid-dosing units and milk-of-lime conditioning plants.
Chemical dosing
Reagent preparation and dosing systems for water and sludge treatment
Our products
Laboratory testing of the actual material guides the design and sizing of reaction tanks, dosing units and metering pumps, allowing the system to be configured for the specific production cycle.
Monolithic milk-of-lime plant
The monolithic milk-of-lime plant is a chemical conditioning unit designed for a minimal footprint. It plays a key role in...
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Milk-of-lime dosing plant
The Tecnoidea milk-of-lime preparation and dosing plant is a key unit for chemical sludge conditioning. Where the characteristics of the...
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Palletised chemical dosing unit (CPDC series)
The Tecnoidea palletised dosing unit automates the preparation and injection of liquid chemical reagents such as coagulants, antifoam agents and...
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When treating contaminated soils, demolition waste or sludge with a high clay content, the material may present physicochemical characteristics that hinder settling or dewatering.
Chemical dosing acts at several stages of the plant. First, automated dosing of flocculant and, where required, coagulant promotes the formation of larger, denser flocs, accelerating settling in the clarifier. In applications such as road sweeping and Soil Washing, dedicated units can also dose antifoam agents to control foaming caused by surfactants that would otherwise hinder the process.
Chemical conditioning can also play an important role in sludge dewatering. Clay-rich sludge, for example, tends to retain significant amounts of bound water. In these cases, milk-of-lime dosing acts as a filtration aid, conditioning the sludge and conditioning the sludge and improving water release during filter-press dewatering, resulting in dewatered, spadeable filter cakes.
Chemical conditioning is tailored to the characteristics of the material and the specific process requirements.
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