The present invention relates to a de-icing and/or anti-icing liquid recovery system for recovering de-icing and/or anti-icing liquids from airport apron/deicing platform surfaces, the system comprising: a deicing-liquid recovery unit; a pump; and a collection tank, where the deicing/anti-icing liquid recovery unit comprises a rotatable brush; a baffle; and a sorting tray fluidly connectable to said collection tank via pump, where the rotatable cylindrical brush is arranged to sweep a apron/deicing platform surface such that materials on the apron/deicing platform surface is forced over the baffle and into the sorting tray, wherein said filter is configured to separate liquids and solid phase materials from said swept-up material, and where liquids collected in the sorting tray can be pumped to the collection tank via said pump. The invention also relates to a de-icing and/or anti-icing liquid recovery and a method for de-icing and/or anti-icing liquid recovery.

The snow melting mat includes an elongate, substantially flat sheet of a desired length connected to a recirculation header at one end and a circulation header at the opposite end. The sheet includes a plurality of channels defined inside the sheet. The channels permit heated liquid to circulate along the length of the sheet. A heater-pump heats the liquid that maintains the temperature of the sheet at several degrees above freezing and pumps the liquid through the recirculation header, the sheet, and the circulation header. A plurality of transverse grooves is formed on the top of the sheet to provide a gripping, walking surface. The grooves taper in depth to permit melted snow and ice to run off the sides of the sheet. Couplers and joints permit multiple sheets to be joined together in any desired pattern.

The snow melting mat includes an elongate, substantially flat sheet of a desired length connected to a recirculation header at one end and a circulation header at the opposite end. The sheet includes a plurality of channels defined inside the sheet. The channels permit heated liquid to circulate along the length of the sheet. A heater-pump heats the liquid that maintains the temperature of the sheet at several degrees above freezing and pumps the liquid through the recirculation header, the sheet, and the circulation header. A plurality of transverse grooves is formed on the top of the sheet to provide a gripping, walking surface. The grooves taper in depth to permit melted snow and ice to run off the sides of the sheet. Couplers and joints permit multiple sheets to be joined together in any desired pattern.

A deicing and/or anti-icing liquid recovery system for recovering deicing and/or anti-icing liquids from airport apron/deicing platform surfaces, the system includes: a deicing-liquid recovery unit; a pump; and a collection tank, where the deicing/anti-icing liquid recovery unit includes a rotatable brush; a baffle; and a sorting tray fluidly connectable to said collection tank via pump, where the rotatable cylindrical brush is arranged to sweep a apron/deicing platform surface such that materials on the apron/deicing platform surface is forced over the baffle and into the sorting tray, wherein said filter is configured to separate liquids and solid phase materials from said swept-up material, and where liquids collected in the sorting tray can be pumped to the collection tank via said pump.

A road display board system device capable of snow melting control includes a detection sensor configured to detect rain and/or snow, a humidity sensor configured to measure a humidity of air, a first temperature sensor configured to measure a temperature of the air, a second temperature sensor configured to measure a temperature of a road surface, a dew point temperature calculator configured to calculate a dew point temperature of the air by matching the humidity of the air and the temperature of the air with a dew point calculation table, a danger time point estimator configured to estimate an icing caution time point and an icing time point, a display configured to display a driving caution guide from the icing caution time point, and a heat supply controller configured to supply heat to the road surface from the icing time point.

A road display board system device capable of snow melting control includes a detection sensor configured to detect rain and/or snow, a humidity sensor configured to measure a humidity of air, a first temperature sensor configured to measure a temperature of the air, a second temperature sensor configured to measure a temperature of a road surface, a dew point temperature calculator configured to calculate a dew point temperature of the air by matching the humidity of the air and the temperature of the air with a dew point calculation table, a danger time point estimator configured to estimate an icing caution time point and an icing time point, a display configured to display a driving caution guide from the icing caution time point, and a heat supply controller configured to supply heat to the road surface from the icing time point.

The salt spreader heating system is a mobile apparatus. The salt spreader heating system: a) contains granulated material; b) heats the granulated material; and, c) distributes the granulated material over a surface. The salt spreader heating system comprises a silo, a pedestal, and a spreader. The pedestal supports the silo. The spreader attaches to the silo. The silo stores the granulated material. The silo heats the granulated material. The silo transports the granulated material to the spreader. The spreader distributes the granulated material over a surface area. The salt spreader heating system is configured for use with a truck. The truck is further defined with a bed and a radiator system. The pedestal raises the silo over the bed of the truck. The radiator system cools the engine of the truck. The silo uses the heat transferred from the engine to the radiator system to heat the granulated material.

The salt spreader heating system is a mobile apparatus. The salt spreader heating system: a) contains granulated material; b) heats the granulated material; and, c) distributes the granulated material over a surface. The salt spreader heating system comprises a silo, a pedestal, and a spreader. The pedestal supports the silo. The spreader attaches to the silo. The silo stores the granulated material. The silo heats the granulated material. The silo transports the granulated material to the spreader. The spreader distributes the granulated material over a surface area. The salt spreader heating system is configured for use with a truck. The truck is further defined with a bed and a radiator system. The pedestal raises the silo over the bed of the truck. The radiator system cools the engine of the truck. The silo uses the heat transferred from the engine to the radiator system to heat the granulated material.

A refuse collection system includes a refuse collection robot and a refuse depot. The refuse collection robot includes a chassis, a tractive element coupled to the chassis, a motor coupled to the chassis and the tractive element and configured to drive the tractive element to propel the refuse collection robot, a refuse container coupled to the chassis and defining a first storage volume, and a controller operatively coupled to the motor. The refuse depot includes a centralized storage defining a second storage volume and a refuse actuator configured to transfer refuse from the first storage volume to the second storage volume. The controller is configured to control the motor to propel the refuse collection to a pickup zone associated with a customer in response to receiving a request for refuse collection from a user device associated with the customer.

A refuse collection drone includes a chassis, tractive elements rotatably coupled with and supporting the chassis, a propulsion system including a battery and an electric motor configured to consume electrical energy from the battery, and a bin removably coupled with the chassis and including a cover. The propulsion system is configured to drive one or more of the tractive elements to transport the refuse collection drone to a customer location. The bin defines a storage volume for refuse. The cover is configured to be driven by an actuator between an open position to allow access to the storage volume and a closed position to limit access to the storage volume. A lock is operable between a locked state to limit transition of the cover out of the closed position and an unlocked state to allow transition of the cover out of the closed position and into the open position.