Fish pond farming impervious membrane requirements are quite strict, to prevent water leakage on the one hand, effective conservation of resources, on the green seepage, preventing water leakage at the same time, protection of water resources pollution and provide a better living environment for the fish. Geomembranes strict requirements, our company geomembrane HDPE plastic granules of raw materials are nontoxic, through advanced coating or film blowing production manufacturing of plastic film, such a small proportion of impermeable membrane, extending strong, Adaptive deformation capacity of high corrosion resistance, low temperature resistance, good freeze resistance.
First my company's culture-specific HDPE geomembranes made an adjustment in the formula, it has a very strong antioxidant ability can long-term use in the open air, late saves investment costs. Geomembranes toxic, poses no poisoning to aquaculture products suitable for breeding of high-grade aquatic products, made impermeable membrane aquaculture pond changed culture environment, meet the international environmental health requirements, broke through the Green fortress of China's aquatic product export clearance.
Breed-specific HDPE geomembrane to impervious performance of good, to put an end to infiltration of water and pool water, keep the water clean
Breed-specific surface of HDPE anti-seepage membrane smooth, cultured bacteria cannot attach themselves on their farming alternate husbandry cleaning disinfection completely, preventing the bacteria from residual contamination, farming simple disinfection is complete and can be used immediately, making full use of the effective duration of rearing. Aquaculture special HDPE geomembrane after laying reduces feed and exposure to pollution of the soil, improve the utilization ratio of feed to save costs.
Construction methods of HDPE anti-seepage membrane
1 flatness: ± 2cm/m2, smooth straight;
2 compactness: 95%, rolled the rear can be laid on the geomembrane;
3 longitudinal and transverse gradient: longitudinal and lateral slope should be above 2%, the contour of the bottom of the landfill boundaries and structure must be conducive to the leachate conductivity;
4 cleanness: the vertical depth in the 2.50cm may not have roots, rubble, gravel, concrete debris particles with sharp edges, such as.
Laying climate requirements:
1 temperature 5-40 ℃ is appropriate, taking into account the thermal expansion and contraction of the geomembrane, based on experience, in cold weather, laying should bear some of the geomembrane; should be slack when it's very hot; but note that noon should be avoided in the summer heat.
2 wind and rain: the wind more than 4 levels or construction should be stopped in the rain wind hours, to use sand bags down the geomembrane, in order to facilitate construction.
Laying of HDPE geomembrane installation
1) extending from the bottom to the high, don't pull it too tight, should have a 1.5% site for local subsidence stretch. Taking into account the actual situation of the project, taken from the top to the bottom of the slope the laying sequence.
2) two adjacent longitudinal joints on a horizontal line should not be staggered above 1M.
3) longitudinal joints should be from legs, bent at the foot of the dam above 1.50M, should be set on a flat surface.
4) slope back end first.
5) slope when laid, and film direction substantially parallel to the maximum slope line.
* Laying of the slope control: impervious geomembrane in the slope before laying, laying areas to inspect, measure, according to the measure of size will match the dimensions in the warehouse of seepage control membrane to the anchorage channel platform, laid according to the actual conditions, taken from the top down, "placing" a convenient way. Pie slice should be reasonable cut, so that the upper and lower ends are firmly anchored.
* Field laying at the end of control: impervious geomembrane in before laying, laying area in%