Characteristics of the system

Landfill leachate is heavily polluted with various mineral and organic materials.

HAR system for the treatment of such effluent is essentially based on membrane separation technology; however, depending either on the variability of the characteristics of the leachate and on the concentrate disposal problems, HAR can offer suitable process combinations.
The system is able to treat the leachate to make the effluent suitable to discharge according to the most severe law restrictions.

Process description

HAR process is based on ultrafiltration and reverse osmosis processes application.
Depending on the feed characteristics and on the required final permeate quality, the leachate is treated through a continuous two/three-stages processing:

1st stage: ULTRAFILTRATION

2nd stage: NARO SYSTEM

3rd stage: NARO SYSTEM

A further step of the treatment developed by HAR is the treatment of the final concentrate waste by evaporation, which can allow to get to a semi-solid form for easier disposal.

Advantages:

	Discharge according to law restriction
	Constant performance with variable feed characteristics
	High automation level
	Absence of gas emissions
	Small footprint
	Low investment and operating cost