A waste water and hazardous chemical containment and collection system includes a substantially planar, non-porous lower layer. A lower corrugated plate layer rests upon the planar, non-porous lower layer and an upper corrugated plate layer rests upon the lower corrugated plate layer. An upper layer that has several holes for the passage of fluids rests upon the upper corrugated plate layer. The overall length and width of the lower corrugated plate layer, the upper corrugated plate layer, and the upper layer are substantially equal. Fluids enter the system through the holes and some oils from the fluids collect within netting of the lower corrugated plate layer and the upper corrugated plate layer for later collection.

A car washing system comprises a filtering unit, a pure water pipeline, a waste water pipeline, a washing pipeline, an optional first branch line, and a second branch line. The filtering unit comprises an RO filter membrane, a filtering pipeline and a booster pump. One end of the filtering pipeline is connected to the inlet of the RO filter membrane. The booster pump is set in the filtering pipeline. The pure water pipeline is connected between a pure water outlet of the RO filter membrane and one end of the washing pipeline. The joint of the pure water pipeline and the washing pipeline is provided with a high-pressure pump. One end of the waste water pipeline is connected with waste water outlet of the RO filtering membrane, and the other end is a discharge end. Water in the washing pipeline flows through the second branch line.

An apparatus for washing vehicles that includes a first tank arranged to receive water from a water supply; a reverse osmosis system arranged to receive and process water from the water supply; a demineralisation system, in fluidic communication with the reverse osmosis system, for treating the water treated by the reverse osmosis system; and a second tank in fluidic communication with the demineralisation system; wherein: the first tank is arranged to receive untreated water from the water supply, and configured to supply such water for pre-washing the vehicle; and the second tank is arranged to receive the water treated by the demineralisation system, and configured to supply such water for rinsing the vehicle. A method for washing a vehicle using such apparatus is also provided.

Embodiments of a washing pod of the present invention generally include a modular assembly of transportable enclosure components and a washing system compatible therewith. The assembly may be installed on any substantially level location that (1) does not need to be excavated or otherwise prepared and (2) does not need to have a connection to a local sewer system. In one embodiment, the washing system includes a wash collection tray, a touchless wash system, one or more recycled water vessels, one or more pumps, and an above-ground water treatment and filtration system. In one aspect, the assembly can typically be installed in a matter of weeks and can be readily disassembled and relocated to another desired location. Embodiments of a method of using embodiments of a washing pod of the present invention are also provided.

A cleaning system includes a planar material beneath a soiled grow table. The planar material is non-porous except for a drain. Above the planar material is a plate layer including at least two layers of runners arranged in a grid where each successive layer is offset at an angle with respect to the grid of a previous layer. The plate layer rests upon the non-porous material. An upper layer covers the plate layer and has a plurality of holes. A roller table is provided for slideably supporting the grow table. Nozzles are positioned over the grow table and is/are interfaced to a pump for receiving and spraying liquid from the pump downwardly towards the grow table. The liquid and impurities (e.g., soil, leaves) fall to the upper layer and through the plurality of holes for cleaning and filtering the liquid before the liquid is returned to the pump.

An absorbent belt according to an embodiment is for absorbing an oil contained in a cleaning liquid, and the absorbent belt includes a sponge member coated with dopamine (DA) formed by immersing a sponge in a solution mixed with the dopamine in a preset range of 1 g/L or more and 16 g/L or less.

The present disclosure provides a method for controlling a cleaning device and a cleaning device. The cleaning device includes a first distance sensor disposed at a bottom. The control method includes: in a process in which the cleaning device moves on a bottom of a pool, when the cleaning device approaches or collides with an obstacle, controlling the cleaning device to climb the obstacle; and in a process of climbing the obstacle, if the obstacle is determined as a step, controlling the cleaning device to move from a first surface of the step to a second surface of the step, where the step at least includes the approximately vertical first surface and the approximately horizontal second surface, where the obstacle is determined as the step at least based on a detection value of the first distance sensor.

A cleaning system includes a planar material beneath a soiled grow table. The planar material is non-porous except for a drain. Above the planar material is a plate layer including at least two layers of runners arranged in a grid where each successive layer is offset at an angle with respect to the grid of a previous layer. The plate layer rests upon the non-porous material. An upper layer covers the plate layer and has a plurality of holes. A roller table is provided for slideably supporting the grow table. Nozzles are positioned over the grow table and is/are interfaced to a pump for receiving and spraying liquid from the pump downwardly towards the grow table. The liquid and impurities (e.g., soil, leaves) fall to the upper layer and through the plurality of holes for cleaning and filtering the liquid before the liquid is returned to the pump.

A method for treating wastewater generated by vehicle wash facilities is provided. The method comprises subjecting wastewater to hydrodynamic cavitation and generating, based on the cavitation, hyper-oxygenated water with nanobubbles possessing positive and negative charges. The method also comprises introducing biological agents into the hyper-oxygenated water and catalyzing reactions, facilitated at least by the biological agents, between the nanobubbles and impurities in the hyper-oxygenated water, the catalyzing causing attachment and disintegration of soil particles and contaminants. The method also comprises utilizing the hyper-oxygenated water to promote aerobic bacterial growth while suppressing anaerobic bacteria, the bacteria generating hydrogen sulfide gas (H2S). The method also comprises reusing the hyper-oxygenated water in the vehicle wash process. The hydrodynamic cavitation generates nanobubbles that attach to impurities, facilitating their breakdown of the impurities and removal of the impurities from the wastewater. The biological agents are aerobic bacteria that outcompete anaerobic bacteria, reducing odors.

A method is provided for treating wastewater by dosing biological agents comprising dynamically adjusting dosing patterns of biological agents based on methodologies comprising at least one of chronotherapy, pulsed dosing, stepwise dosing, bolus dosing, continuous dosing, manual dosing, and automatic dosing. The method also comprises introducing biological agents into the wastewater to facilitate cleaning and malodor elimination. The biological agents comprise aerobic bacteria that promote odor reduction by competing with anaerobic bacteria responsible for generating malodors. The method also comprises adjusting the concentration and type of biological agents introduced into the wastewater based on time-of-day and circadian rhythm-based variations in microbial activity within the wastewater system. Real-time monitoring is performed at multiple locations within a wastewater treatment facility to dynamically adjust dosing patterns for each location independently.