In the early stages of the sewage works when they're dealing with the liquid they use aerobic bacteria.

Later that year, a way was found of using bacteria to make shikimic acid.

Cheese made in factories is often curdled by using bacteria.

But, he asked, could he produce the disease if he used bacteria that had not been growing in another animal?

A number of products have also appeared on the market using de-nitrifying or nitrogen-fixing bacteria.

To build metal structures or materials using bacteria would be more difficult.

Another example is using naturally present bacteria by the mining industry in bioleaching.

Existing treatment plants use bacteria that convert ammonium into nitrate.

The notion of using bacteria to reduce pollution is far from new.

Municipal sewage systems have used bacteria to break down wastes for more than a century.