At Hiru we are steadfast in our commitment to restoring any natural resource depletions resulting from our operations. We have instituted several measures towards minimising air pollution, re-using water and recycling rice husk, always surpassing Central Environmental Authority (CEA) guidelines and specifications.
Hiru is conscious of the impact of air quality not only on the environment but also on the respiratory health of our workers. Our air pollution control system is, therefore, rigorous in ensuring that our air quality is well within Central Environmental Authority requirements. The dust emission points of our air pollution control system, designed by in-house engineers, is connected to dust control systems where all the dust is collected into bags thus assuring good air quality surrounding the mill.
In an effort to maintain zero impact of operations on the environment, we have initiated a zero discharge programme and instituted a wastewater purification system at our mill. The system is capable of handling processed waste, kitchen and toilet waste and all other biodegradable waste generated within the facility. At present, hectares of banana plantations are being watered by the purified wastewater.
Another programme under our zero discharge initiative is the recycling of rice husk, where the generation of steam by the industrial boiler, is fuelled by the waste rice husk. The resulting boiler stack emission is well within Central Environmental Authority specifications. The ash formed in this process is used as feed material for our micro silica production facility. The micro silica is used in production of plant fertilizers and building construction.