Industrial waste treatment process and system

A de-watering system for a liquid industrial waste, the liquid industrial waste being a product of an industrial cleaning process, the liquid industrial waste comprising water, detergents, and waste matter from the industrial cleaning process,

• the system comprising:
• a de-watering bed configured to hold the liquid industrial waste, the de-watering bed having closed sides, a base and an open upper surface,
• a first zone, the de-watering bed being located in the first zone, the first zone being enclosed by a transparent structure, the transparent structure:
• (i) being located outdoors, whereby air in the first zone is subject to solar heating during daytime,
• (ii) having a first controllable opening at a first end of the transparent structure, the first controllable opening configured to admit air into the transparent structure;
• and
• (iii) having a second opening at a second end of the transparent structure,
• an air removal conduit at the second end of the transparent structure, the air removal conduit configured to allow heated air from the first zone to rise up the air removal conduit, from the second opening of the transparent structure, and to vent to the atmosphere,
• whereby the open upper surface of the de-watering bed is configured for water to evaporate from the liquid industrial waste into the heated air in the first zone, the water passing through the first zone in a first direction, from the first end of the transparent structure to the second end of the transparent structure, and passing in a second direction up the air removal conduit,
• a control system, the control system configured to:
• (i) selectively open the first controllable opening, to regulate a rate of flow of air through the first zone;
• and
• (ii) continue de-watering the liquid industrial waste until reaching a selectable end point in the de-watering process.

A method of de-watering liquid industrial waste, the liquid industrial waste being a product of an industrial cleaning process, the liquid industrial waste comprising water, detergents, and waste matter from the industrial cleaning process, the method comprising:

• determining an initial percentage of water content in the liquid industrial waste;
• feeding the liquid industrial waste into a de-watering bed, the de-watering bed being located in a first zone enclosed by a transparent structure that is located outdoors, thereby subjecting air in the first zone to solar heating during daytime,
• selectably controlling a first controllable opening at a first end of the transparent structure, to regulate a flow of air through the first zone,
• an air removal conduit at the second end of the transparent structure conveying heated air from the first zone up the air removal conduit from a second opening at the second end of the transparent structure, and venting the heated air to the atmosphere,
• whereby water from the liquid industrial waste in the de-watering bed evaporates into the heated air in the first zone, and passes through the first zone in a first direction, from the first end of the transparent structure to the second end of the transparent structure, and passes in a second direction up the air removal conduit, and
• continuing the de-watering of the liquid industrial waste until a selectable end point in the de-watering process has been reached.