Ocean Non Wovens’ Ocean HDPE Liner in the Integrated Solid Waste Management Project at Avaragolla, Davanagere

Ocean Non Wovens supplied Ocean HDPE Liner-1500 micron for the Integrated Solid Waste Management Project at Avaragolla, Davanagere, in Karnataka. The liner forms the base containment barrier of the project’s landfill, keeping leachate out of the soil and groundwater.

Project overview

Project Name: Integrated Solid Waste Management Project at Avaragolla, Davanagere
Product Used: Ocean HDPE Liner-1500 micron
Quantity Used: 16,080 Sqm

Challenges

1. Leachate control: the existing waste disposal methods risked leachate contaminating soil and groundwater.
2. Landfill integrity: the landfill had to stay structurally sound, without soil erosion or waste escaping into the surrounding area.
3. Regulatory compliance: environmental regulations required an engineered waste containment system.

Why a 1500 micron HDPE liner

Ocean Non Wovens worked with the project stakeholders on a containment system built around Ocean HDPE Liner-1500 micron, chosen for its strength, durability and impermeability.

The thickness is not arbitrary. India’s Solid Waste Management Rules, 2016 call for a sanitary landfill base liner that is a composite barrier: a 1.5 mm HDPE geomembrane, or equivalent, over 90 cm of compacted clay or amended soil with a permeability no greater than 1 × 10⁻⁷ cm/s. The geomembrane is the primary barrier; the clay beneath limits flow through any defect that does occur. HDPE is used because it resists the acids, salts and organic compounds in municipal leachate, and its stress-crack resistance suits it to decades under a waste load.

Implementation

1. Site assessment: Ocean Non Wovens assessed the site to understand the specific challenges and environmental conditions at Avaragolla.
2. Liner layout: the Ocean HDPE Liner-1500 micron panel layout was planned to fit the contours of the landfill and give complete coverage.
3. Installation: Ocean Non Wovens’ technicians installed the liner following standard industry practice.

On a landfill base, standard practice means panels joined by dual hot-wedge welds and air-pressure tested, extrusion welds at details vacuum-box tested, destructive seam samples checked for shear and peel strength, and the liner anchored in a perimeter trench. A nonwoven geotextile protection layer over the geomembrane and the leachate drainage layer above it protect the sheet from puncture once waste placement begins.

Outcomes

1. Leachate containment: the impermeable liner prevents leachate migration and protects soil and groundwater.
2. Landfill stability: the liner contributes to the stability of the landfill and prevents soil erosion.
3. Regulatory compliance: the project met the applicable environmental regulatory standards.

Ocean Non Wovens supplies HDPE liners, geotextiles and related geosynthetics for municipal and industrial landfills. See also the Dibrugarh landfill case study.

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