China HDPE Membrane Geomembrane for Biogas Plant

Enclosed Anaerobic Lagoon
Made of HDPE(High Density Polyethylene) Geomembrane

Introduction about Our HDPE Geomembrane Factory
Founded Time:
2001;
Main Products:
HDPE geomembrane,Geo-synthetic Clay Liner,Composite geomembrane;
Role In the industry:
The first group of companies that apply HDPE geomembrane to anaerobic digestion for biogas generation in China;
Plant Floor Area:
20,000 Square Meters;
Employee No.:
More than 360;
Technical Department No.:
95 professional engineers,inclusive of 8 senior engineers;

Introduction about HDPE Geomembrane
Material choose
-97.5% of Quality high-density polyethylene virgin resin(imported from Iran and UAE);
-2.5% of carbon black,anti-aging agent,Antioxidant,UV absorbers and stabilizers etc;
Production Technology
-Manufacturing Machine is most advanced full-automatic type,imported from Italy;
-All finish products are up to the GRI standard(The United States) and ASTM testing standard/requirements;
-Triple Co-extrusion technology is used for manufacturing;
-Testing Machine

Tensile TestBurst TestPenetration TestWear Resistance Test
Application Fields
Construction - underground project of subway,building,roof reservoir,sewage pipeline etc;
Landscape - Artificial lake,pond,golf course pond substrate,revetment etc;
Sanitation - Domestic garbage landfill,sewage treatment,enclosed anaerobic lagoon etc;
Water Conservancy - anti-seepage,leaking stoppage and reinforcement of river/lake/ basin/damp etc;
Agriculture - reservoir,drinking water pool,irrigation system etc;
Mining&Chemical Industry - anti-seepage of oil tank,chemical reaction pool,inner liner of settling tank,salt filed crystallizing pond,brine pond etc;


Feature of HDPE Geomembrane

Thickness(mm)1.01.251.52.0Density (g/cm3)≥ 0.94Yield Strength (N/mm)
(Horizontal,Vertical)≥ 15≥ 18≥ 22≥ 29Breaking Strength (N/mm)
(Horizontal,Vertical)≥ 27≥ 33≥ 40≥ 53Yield Elongation
(Horizontal,Vertical)≥ 12Breaking Elongation
(Horizontal,Vertical)≥ 700Tensile strength≥ 25 MpaTearing Strength (N)
(Horizontal,Vertical)≥ 125≥ 160≥ 190≥ 250Puncture Strength (N)
(Horizontal,Vertical)≥ 320≥ 400≥ 480≥ 640Environmental Stress Crack Resistance (h)≥ 300Carbon Black Content2.0 ~ 3.0%Standard OIT
(Oxidative Induction Time)≥ 100 minHigh-pressure OIT
(Oxidative Induction Time)≥ 400 min85ºC Baked after 90days,
standard OIT keeping Rate≥ 55%Ultraviolet ray at 1600hrs,
OIT keeping Rate≥ 50%Water Vapor Leaking≤ 1.0*10-13 g.cm(cm2.s.Pa)Environmental stress cracking resistance F 20h≥ 1500Impact&embrittlement property in low-temperature at -70 ºCPass the DetectionDimensional stability percentage± 3%Width of each roll after packed5/7 metersLength of each roll after packed100 metersWeight of each roll (kg)480/672600/840720/1008960/1344
Remarkable Characteristics of HDPE anti-seepage Membranebrane


Application of HDPE Geomembrane for Enclosed Anaerobic Lagoon
There has been a long history in the world for applying HDPE geomembrane to anaerobic fermentation field;Main principle is to make a complete enclosure in the shape of a big lagoon while ratio of length&width is around 1.5 and depth is 5~7 meters,and angle of wall is designed at 45°or 2:1;Multiple pieces of membrane are welded together to make a big floor area of bottom membrane and upper membrane;The sides of bottom&upper membrane are anchored tightly in the anchoring channel whose depth is 1~3m;Pipes&valves and all kinds of waste exits&pumps are installed in advance;Waste water flows into lagoon and flows out automatically;The lagoon would become anaerobic environment generally and activated sludge sediment at bottom of lagoon;Waste retention time is 30~80 days,COD/BOD removal rate is 60~80%;Temperature is 15~30 degree.C,performance is not so stable as bolted tank(CSTR,UASB,EGSB);Low investment and easy operation&maintenance are the biggest advantages;