HELP! Chemical Disposal options

I remove silver from used fixer with a AA battery, a stainless steel wire, and a silver wire. The wire can be had from hobby stores. A battery holder can be made, or bought. Hire a specialist to do the soldering.

This is reverse electro-plating. It works very well. You can even see the material transfer in some cases. It takes just a few minutes for a gallon of fix.

CBG said:

Can you tell us the source of the nitrate?
Can you briefly say what an aerobic advanced treatment system is?

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The nitrogen source is organic products, that is, food. Food waste from the kitchen (20%) and processed food waste from the backside of humans (80%). There may be other sources such as ammonia based cleaners, but for the average house, it's just food.

Aerobic treatment systems are an active treatment system, basically a mini waste water plant. Usually consist of a septic tank followed by another tank where air is introduced through a blower system. A high population of aerobic bateria is maintained to treat the waste. Organic waste is food for these organisms; they consume it and grow, multiply and die. Aerobic system are fickle animals, very easy to upset the treatment process.

I tell people that septic systems are living breathing animals. Treat them properly and they will thrive.

r-brian said:

processed food waste from the backside of humans (80%).

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Processed food waste - that a more polite way of stating it than I would have said it!

I've worked with biosolids - I'm glad I don't have to do anything with sludge.

r-brian - what's your opinion on silver. I content that it will drop out of solution as sulfide or halide and not have any effect on the bacteria in a septic tank.