At our household we use a Septic Tank. Can we use a food waste disposer?

The answer is definitely YES. A properly sized septic tank can easily accommodate the use of a disposer. Septic systems designed to accommodate a dishwasher or clothes washer can also accommodate a disposer. On a daily basis, and on average, a household food waste disposer uses an amount of water equal to one flush of a toilet.

What about the environment? Is a disposer harmful in any way?

Just the opposite, in fact. Decades of independent international research has shown that using a disposer is the safest, easiest and most environmentally responsible way to dispose of biodegradable food waste. Disposers significantly help reduce landfills and, in fact, disposer food waste has been recycled to form fertilizer in some parts of the country.