LCQ4: Use of mechanised and automated cleaning technologies
Following is a question by the Hon Andrew Lam and a reply by the Secretary for Environment and Ecology, Mr Tse Chin-wan, in the Legislative Council today (May 7):
Question:
The 2017 Policy Address proposed to explore the introduction of automated cleaning machines or technology for trial use at suitable venues or after large scale events. According to the Government's paper submitted to the Subcommittee on Issues Relating to the Improvement of Environmental Hygiene and Cityscape of this Council in 2021, the Food and Environmental Hygiene Department (FEHD) has in recent years fully deployed technologies for mechanisation and automation of cleaning operations. In this connection, will the Government inform this Council:
(1) of the items of cleaning machinery or technology deployed by the FEHD in various districts of Hong Kong, and the average annual utilisation rates of such items, with breakdowns by each of the 18 districts across the territory; and
(2) whether the Government has regularly promoted and monitored the deployment of mechanised and automated technologies in cleaning operations by outsourced service contractors; if so, of the details; if not, how the Government will step up monitoring efforts?
Reply:
President,
In recent years, the Food and Environmental Hygiene Department (FEHD) has been actively introducing new technologies to improve the quality and efficiency of street cleansing and refuse collection services, enhance the occupational safety of frontline staff and strengthen enforcement effectiveness.
My reply to the question raised by the Hon Andrew Lam is as follows:
(1) The FEHD has widely adopted the following technologies and equipment in public cleansing services, including:
(i) Mini street washing vehicles equipped with high pressure hot water cleaners and pressure washer surface cleaners have been introduced in various districts, which can quickly remove dirt from pavements and come with the advantages of saving time and energy, being flexible, reducing disturbances to pedestrians, etc. Since early this year, 67 teams have been using mini street washing vehicles with pressure washer surface cleaners for street washing across the territory, and the locations covered by these vehicles have increased to about 3600, including those with stubborn dirt or moss, with a view to bringing substantial enhancement to the cleanliness of such locations;
(ii) Litter sweeping plays an important role in street cleansing. The FEHD has widely deployed 11 teams of new mechanical street sweepers in various districts to sweep roads, footbridges and central dividers. It has also provided 118 low-entry driver cab type refuse collection vehicles to enable drivers and cleaning workers in collecting and transporting refuse;
(iii) To improve the refuse collection facilities in rural or remote sites and for better environmental hygiene, the FEHD is implementing a scheme to improve waste collection facilities, under which 287 solar-powered aluminium refuse collection points as well as 51 solar-powered compacting refuse bins and solar-powered refuse compactors have been set up in rural sites. These facilities feature a solar sensor or a foot pedal for touchless control of the inlet openings, and are more convenient and hygienic to use. Their enclosed design can also reduce odour emission and prevent pest infestation. Some of these collection facilities are equipped with a compacting function which will compact refuse to increase storage capacity when the refuse yield reaches a certain level, thereby reducing the need for provision of more refuse containers or more frequent refuse collection; and
(iv) The FEHD also utilises technologies to monitor the cleanliness condition in order to step up the combat against illegal deposit of refuse. Currently, Internet Protocol (IP) cameras have been installed at over 500 illegal refuse deposit blackspots in various districts. The footage captured will be analysed by artificial intelligence to identify the acts of illegal deposit of refuse so that the Department can plan more effective enforcement actions, and institute prosecutions directly. Recently, IP cameras have been installed on traffic roads at over 30 suitable locations in various districts to combat littering from vehicles by irresponsible drivers or passengers. The footage captured will be used for prosecution. In 17 remote coastal sites, 360-degree cameras are used to remotely monitor their cleanliness for timely removal of refuse.
Given the extensive use of the above technologies and equipment in the discharge of regular duties, the FEHD does not keep any specific statistics on their utilisation rates. The summary of the utilisation of the equipment is set out in Annex.
The FEHD has made continuous effort in examining and testing out new technologies not only for greater work efficiency, but also for enhanced protection of the safety of frontline staff, who will have a reduced chance of sustaining work-related strains and injuries. For example:
(i) The FEHD is working with the Electrical and Mechanical Services Department (EMSD) on the application of automated sweeping robots, which will be used for street cleansing so as to reduce the physical exertion of cleansing staff. The robots have been tested in the Hong Kong Science Park, and will undergo the second phase of testing on suitable pavements in due course;
(ii) Electrically assisted trolleys are introduced to ease the physical burden on frontline street cleansing staff. These trolleys, apart from being electrically assisted, are equipped with indicator lights, buffers, reflective stickers, etc, which help enhance safety and work efficiency; and
(iii) The FEHD is also bringing in the most advanced industrial grade robot dogs from the Mainland with a view to enhancing the efficiency in transportation of refuse and reducing the risk of injuries of cleansing workers caused by handling heavy objects. The Department will conduct tests on the refuse handling capacity of the robot dogs at specific locations, such as slopes, stairs and rugged areas. It will also explore ways to upgrade the ancillary facilities.
In addition, the FEHD plans to, in collaboration with the EMSD, commence a trial on hydrogen fuel cell street washing vehicles in Yuen LongDistrict and North District in mid-May this year to promote the use of cleaner hydrogen energy, which will contribute to achieving the carbon neutrality target of Hong Kong.
After the trial use of new technologies, the FEHD will review their effectiveness and solicit views from different stakeholders for consideration of whether and how they should be put into wider use. It will also continue to identify technologies and equipment for improving street cleansing service and refuse collection work through various channels, such as drawing on the local, Mainland and overseas experiences.
(2) The FEHD encourages the contractors bidding for service contracts to put forward suggestions on innovative applied technologies. If any suggestion(s) is/are rated as effective and practical, extra scores will be given to the tender. If the contractor is awarded the contract, such suggestion(s) will become the contract terms that shall be implemented. Innovative applied technologies proposed by contractors in recent years include the use of on-board refuse bin cleaners, which can help reduce the need for manual washing and enhance efficiency. The FEHD will progressively extend their scope of application in view of the satisfactory results.
On the monitoring of contractors, the FEHD's public cleansing service contracts will clearly set out the mechanical and automated cleaning equipment that shall be provided by contractors. The FEHD will monitor contractors' performance (including whether applied technologies and equipment are provided as required in the contracts) through site inspections, surprise checks and examination of job records. In the event of any non-compliance with the contract requirements, the Department will take follow-up actions, which include the issue of warnings, default notices as well as deduction of monthly service charges. Contractors' service performance records will also have a bearing on their eligibility or rating in future bidding for the FEHD's outsourced service contracts.
Thank you, President.
Source: AI-generated images
