MODULAR PLASTIC BLOC SYSTEM AS ON-SITE DETENTION TANK(OSD) MADE WITH RECYCLED POLYPROPYLENE (PLASTIC)

Stormwater is the water draining off a site from the rain that falls on the roof and land, and everything it carries with it. The soil, organic matter, litter, fertilisers from gardens and oil residues from driveways it carries can pollute downstream waterways. Rainwater refers only to the rain that falls on the roof, which is usually cleaner and so rainwater filtration system is very important. However, stormwater can be a valuable resources. Reusing stormwater can save potable water and reduce downstream environmental impacts. Poorly managed stormwater management can cause problems on and off site through erosion and the transportation of nutrients, chemical pollutants, litter and sediments to our waterways. Well-managed stormwater can replace imported water for uses where high quality water is not required, such as garden watering. There are many products available in the market for stormwater filtration system such like gross pollutant trap, oil grease trap, hydrodynamic advanced vortex separator etc. By installing a proper stormwater filtration system, it helps to prevent clogging of the drain which causes flooding. As more and more developments are taking place around us, the congestion of the constructions debris and silts are flowing to the drain causing flash flood in most of the major cities around the world. Despite the continuous development and expansion of our drainage system in the country, we believe the problem should be rectified and prevented at the source.

Stormwater management in Malaysia is essentially about flood mitigation by managing the surface run off during heavy downpour. It can also be applied in rural areas (to harvest precipitation water), but is essential in urban areas where run-off cannot infiltrate because the surfaces are impermeable. Traditional storm water management was mainly to drain high peak flows away. Unfortunately, this only dislocates high water loads and causing flash floods in urban areas. Modern approaches aim to rebuild the natural water cycle, example to store runoff water (retention basins) for a certain time, to recharge ground water (infiltration basins) and to use the collected water for landscape irrigation or daily cleaning. A rainwater filtration system is usually put in place before the water is channelled into the storm water storage tanks with the purpose of preventing gross pollutant debris from entering these underground storm water tanks.

We at Myhomepalm are able to provide stormwater management solution in Malaysia. With our trained consultants and engineers, we can design the storm water management system to suit our customer needs.

THE OSD TANK CHARACTERISTIC :-

1. The tank is constructed with modular forms of components and parts which are systematically pieced together in a modular format.
2. Each parts and components is manufactured from a single source of production line within the same premise to ensure perfect compatibility.
3. The internal structure of the modular plastic tank system is supported by integrated pillar-like structure which is to be fitted precisely into the manufactured designated point. The overall crate of the modular tank system must has a nett capacity of more than 96%.
4. The tank is modular to allow for future expansion requirement to accommodate higher capacity without any hacking and demolishing needed.
5. The tank is manufactured from Recycled Polypropylene material and must be substantiated with recognised certification / ESG Compliant.
6. The tank is suitable for any ground movement, particularly any seismic occurrences when installed underground.
7. The tank is certified lifespan of more than 50 years by international accredited bodies or agencies.
8. The tank is able to withstand the types of load requirement for the project, ranging from pedestrian loading, light vehicle to heavy traffic up to 40-60 tonnes when installed underground and by way of satisfying the engineering input and installation method from the manufacturer.
9. The modular tank crates have an internal structure to withstand the vertical and lateral load and each parts are connected and secured via manufactured connectors.
10. The governing strength structure is evenly spread out by way of design and must not be sitting directly on top of the lower layer structure to avoid prolonged structural stress.
11. The modular tank is provided with the options of a manufactured shaft for inspection and maintenance purposes. If needed, the base of the modular tank is designed with an access tunnel for the movement of inspection device and can be cleaned by high-pressure jetting.

Vertical soil pressure

The covering soil layers/soil fill cover produce vertical soil pressure. This is linear and depends on the installation depth /height of the fill cover and the density of the chosen material. The vertical soil pressure is normally estimated to be around 20 kN/m² per metre of fill cover.

Vertical loads

The vertical load comprises the traffic load and soil pressure as described above. The sum of the two loads is therefore dependent on the installation depth. This limits the maximum permitted fill cover on top of the infiltration elements.

The approved long-term vertical load for the overall system with a lifetime of 50 years is 59 kN/m² including safety factor of 2.0. Both the approved vertical loads and the vertical loads actually present limit the installation window of the ditch elements with the minimum and maximum installation depth, the installation window for the infiltration tunnel/twin infiltration tunnel can be calculated in the same way.

Vertical and lateral acceptance limits vs loads factored :-

Horizontal load

The angle of friction has an important influence on the horizontal loading. Part of this vertical load is converted into a horizontal load by the internal rigidity of the filler material.

The horizontal load is also dependent on the height of the fill cover, i.e. the installation depth, and limits the installation window for the infiltration ditch elements.

: Brochure

: MyHijau Certification

: Sirim Certification