HRS Environmental Brochure
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heat ewchangers We have a duty to protect the environment and human health from the effects of waste management and disposal. Operators are growing increasingly aware of the environmental impact of their activities. Strict environmental regulations demand companies to source a means of reducing the generation of residues and work towards converting waste streams into energy or added value products. As a result, companies are looking to adopt a sustainable and cost effective approach to the management of such waste, in order to comply with regulations, whilst maintaining a strategic position...

CORRUGATED TUBE HEAT EXCHANGERSHigh level of efficiency for the environmental industry AS Series Viscous Effluents A heat exchanger with three concentric tubes where the product flows through an annular space heated or cooled from the outside and inside. Very efficient for viscous fluids that are difficult to treat in other geometries. DTI Series Sludge/Digestate Atube in tube heat exchangerfor processing sludge with large particles. The large diameter of the inner tube allows sludge to be processed without blockages. Promotes high heat transfer and easy to clean. A true counterpart for...

Evaporation is an efficient way of reducing the volume of effluents. Our evaporation systems raise effluents to its boiling point; water is evaporated and condensed, thus obtaining a concentrated end product and water. Forced recirculation: a pump sends the product through the evaporator at high velocity. This process ensures heat transfer remains high and the negative effects of fouling are limited. Where possible we aim to integrate our evaporation systems with waste heat sources to achieve an effective sustainable process. HRS applies two heat transfer technologies within its evaporation...

HRS uses two technologies that maximise energy usage within our range of evaporation systems: Three Effect Evaporation System Scheme These systems combine various evaporation stages. The vapour obtained from a previous stage is used as the thermal energy source for the resulting stage. Multiple stages can be combined to reduce the energy consumption needed for the amount of water evaporated. Evaporated water In MVR setup, the evaporated steam is sent to a compressor (where it increases in pressure and temperature) and used as the thermal energy source in the evaporation process. Only...

HRS has developed a continuous sludge pasteurisation process based on DTI and DTR Series heat exchangers and a product holding section, for the destruction of pathogens. The flow sheet below explains how the sludge is heated to its pasteurisation temperature (normally 70 eC) using two DTI heat exchangers. The holding section consists of three tanks, with each tank holding the amount of product to be processed within the holding period (normally one hour). The three tanks make it possible to constantly send and extract product from the holding section and recover energy between the hot...

For fouling fluids, we can combine the DTI Series with our scraped surface heat exchangers offering a solution that reduces down time for cleaning. BIOETHANOL Thanks to its corrugated tubes promoting higher heat transfer, the K Series works very efficiently for biodiesel applications: CHP Exhaust Gas Heat Recovery The G Series is an ideal heat exchanger for cooling CHIP exhaust gas. The corrugated tubes can work with smaller heat transfer areas than traditional smooth tube heat exchangers. Our G Series units can be integrated and used to deliver thermal energy from the CHIP units to our DPS...