Define the following chlorine demand, super demand, super chlorine, stock solution, different between solution feed and direct feed chlorination. Then define,unit procedure and process?

Chlorine demand: The amount of chlorine needed to effectively disinfect water or wastewater by reacting with organic and inorganic substances present in the water.

Super demand: A sudden increase in the amount of chlorine needed to meet the disinfection requirements due to unexpected factors such as high levels of organic matter or contaminants in the water.

Super chlorine: A highly concentrated form of chlorine used for disinfection purposes, typically containing a higher percentage of active chlorine compared to regular chlorine solutions.

Stock solution: A concentrated solution of a substance that is diluted with water to create a working solution of a desired concentration.

Solution feed chlorination: The process of adding a chlorine solution to water through a controlled system to achieve disinfection.

Direct feed chlorination: The process of adding chlorine gas directly into water for disinfection purposes.

Unit procedure: A specific step or operation within a larger process that contributes to achieving a desired outcome.

Process: A series of interconnected unit procedures or steps that are carried out in a systematic manner to achieve a specific goal or result.