Our mission

Professional clean-up project with environment and safety taken into account

Hong Kong is faced with problems of dense population, scarce land and heavy traffic flow; complex utility's pipe networks are usually installed underground, thus extra safety concern and expertise are specially required before carrying out clean-up.

The cleaning of box-type storm water drains has always been considered as a project of high technical expertise: the underground drains are often silted up by sand and debris, and are possibly to produce poisonous or even flammable gases due to decaying substances. Conventional way requires workers to go inside clean manually within confined spaces and water, but such method is not effective and efficient when removing a large quantity of the cleaned sediments from the enclosed area. The excavated sediments, would release odor under exposure and cause nuisance to the public. Clean-up work will become even more challenging if the drains locates in the tidal zone because the drains would be long inundated by the extremely high flow of sea currents, and the water level would change unpredictably with tidal fluctuations.

Our solution

Unmanned diving tank
Unmanned diving tanks developed by Waylung Waste Services Limited are particularly suitable for using in box-type storm water drains, particularly in harsh environments and run underwater. The hard shovel and bucket can shovel and hold the sediments tightly; photographic apparatus is installed at four top corners so that the ground operators can monitor the situation and process all rounded within the storm water drains via a closed-circuit computer, and control the machine to move in a safe position.
The results
Reducing safety risks: Mechanically-controlled operation without putting staff at risk arising from working in the confined space, ensuring work safety.
Improving cleaning efficiency: The use of sealed cargo buckets to load the cleared sediments could shorten the time of sediment transportation and storage by up to 4 hours, enabling the sediments to be delivered to landfill within the same day.

30 tons/day

cleanup capacity

10 times

efficient than conventional cleaning method


You want some information?
Send us an email:sales@waylung.com.hk
Tel:+852 2653 7738
Fax:+852 2650 0063