What is the main disadvantage of using hypochlorite instead of chlorine gas?

The main disadvantage of using hypochlorite instead of chlorine gas is its higher chemical cost. Hypochlorite, often in the form of sodium hypochlorite solutions, typically has a higher per-pound cost compared to chlorine gas. This can significantly impact operational budgets, particularly in large-scale wastewater treatment facilities where chlorination is a standard practice.

While hypochlorite offers advantages such as ease of handling and lower toxicity, these benefits come at a cost. The financial implications can affect a facility’s decision-making on chemical usage, maintenance budgets, and overall treatment costs.

The other options involve considerations that may not directly impact the financial aspect of chemical choice, like training frequency or regulations, which may not be major factors when comparing the two chemicals in the context of direct cost to the facility.