Chemical waste of acids can be safely disposed of in the sewer system. Both acids and alkalies must not contain heavy metals. Copper, zinc, lead, cadmium and mercury can kill bacteria that is used in water treatments. They both must be neutralized and washed down the drain with lots of water. Neutralization must be used if possible. Acids can be neutralized with sodium bicarbonate, or sodium carbonate. Alkalies can be neutralized with vinegar, or photographic indicating stop bath.
Collecting and hauling of hazardous waste must be done by a certified waste management company. The waste management facility determines the type of container waste should be stored in and how it is labeled. Glass bottles or plastic is preferable to metal, because water can rust a metal container. Waste bottles should be kept closed at all times. Containers should be stored in a wooden crate or sturdy card board box. Inside the box, a liner made of polyethylene is filled with vermiculite. Vermiculite is an inorganic, non-reactive and non-flammable substance. Once the hauler has the properly packaged waste they will transport it to a designated site.