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Unused and spent photographic developers and negative plate processing chemicals are generally not considered hazardous. They are safe to pour down the drain, but only on a sewer system. Do so in small quantities in order to avoid chemical reactions.

The most widely favoured solution is deep geological disposal. The focus is on how and where to construct such facilities. Used fuel that is not intended for direct disposal may instead be reprocessed in order to recycle the uranium and plutonium it contains.

Local Waste and Recycling Centres have designated areas for chemicals to be left. Taking your waste chemicals here will mean they are disposed of in the correct manner. Look into where your nearest Waste and Recycling Centre is and use this facility to get rid of your waste developing chemicals.

If they are unused chemicals, you can combine developer and fixer to neutralize them and then pour down your drain leading to a municipal water treatment center. (Do not dump it into a septic system.) Don't dump selenium toner down the drain. Most else can be dumped.

Most developers are moderately to highly toxic by ingestion, with ingestion of less than one tablespoon of compounds such as monomethyl-p-aminophenol sulfate, hydroquinone, or pyrocatechol being possibly fatal for adults.

In the US, it is chemically processed and burned, and in Russia, it is burned in the reactors. However, some amount of plutonium still remains, and it needs to be disposed of in radioactive waste landfills.

If you have color photography chemicals and solutions, contact the manufacturer for disposal instructions. Second best: If your home is connected to a city sewer system, small amounts of well mixed and diluted black-and-white photography solution can be flushed down the drain (toilet is best) with plenty of water.

Direct disposal is, as the name suggests, a management strategy where used nuclear fuel is designated as waste and disposed of in an underground repository, without any recycling. The used fuel is placed in canisters which, in turn, are placed in tunnels and subsequently sealed with rocks and clay.

The current U.S. approach relies on disposing of the plutonium by irradiating it as MOX fuel?a mixture of plutonium and uranium oxides?in modified commercial nuclear reactors.

Color film bleach and blix Bottle and store bleach and blix (they can be in the same bottle), and take the solutions to a waste facility that deals with silver. In many cases, your local lab will also be able to take these chemicals for you.