What is green chemistry?

The twelve principles of green chemistry

were developed by Paul Anastas and John Warner in 1998.

This was largely as a response to Federal legislation.

In the early 1990s both the US and NZ were addressing the issues of pollution. In NZ in 1991 the Resource Management Act was passed. This sometimes controversial Act of the NZ Parliament promotes the sustainable management of the natural and physical resources of land air and water. In the US in 1990 the Federal Government passed the Pollution Prevention Act.  With the passing of this act, stopping the creation of pollution in the first place became America’s official policy.

Green chemistry

The first principle of green chemistry is prevention.

It is better to prevent waste than to treat or clean up waste after it has been created.

Berkeley W. Cue, Jnr, takes the view  that it is the first principle, often referred to as the prevention principle, is the most important principle of the twelve principles of green chemistry and the other principles are the “how to’s” to achieve it.

One measure of waste is the E-factor, which relates the weight of waste produced to the weight of the desired product. Historically, in drug manufacturing up to 100kgs of weight to 1 kg of active product could occur. These horrifying statistics have been reduced as much as ten-fold when companies apply green chemistry principles to the design of the active drug process.

The dairy industry in New Zealand was potentially a serious pollutant of the rivers and waterways of the country. Strict controls are now in place to ensure that waste from dairy farms is thoroughly cleaned in situ before discharge.

The Halo range is designed using the principles of green chemistry and is committed to assisting farmers to fulfil their clean water obligations.  Contact us for more information on green chemistry and how it can help you or fill in the form below.

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