How we know that biosolids are safe
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The NSW Environment Protection Authority (EPA) and NSW Health advise that biosolids are safe if produced and used in line with their guidelines. We meet all the requirements in the guidelines.
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To learn more about the biosolids guidelines, visit NSW EPA and NSW Health.
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How biosolids are produced
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When solids are separated from wastewater during the wastewater treatment process, they go through biological treatment. This reduces pathogens, odours and particles that attract insects and vermin.
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All biosolids we produce are tested at laboratories to ensure they comply with regulations to protect human health and the environment. Our $25 million biosolids program uses the latest technology and treatment processes. This ensures we can:
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\r\n- recover resources for a range of uses
\r\n- continue to protect public health
\r\n- reduce odours
\r\n- reduce operational costs.
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Find out more about How biosolids are produced (167KB).
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How biosolids can be used
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Agriculture \r\n | \r\nNutrients from biosolids are released slowly during plant growth. This increases crop production, provides superior water-holding properties and replaces nutrients removed from soil by harvesting. \r\n | \r\n
Composting \r\n | \r\nBiosolids are mixed with other organic materials such as green waste, shredded timber and sawdust and allowed to compost naturally. This material is usually mixed into the soil to improve soil structure and help hold water. \r\n | \r\n
Land rehabilitation \r\n | \r\nBiosolids are used to restore mine sites and degraded agricultural land. \r\n | \r\n
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我们如何知道生物固体是安全的
新南威尔士州环境保护局(EPA)和新南威尔士州健康公司建议,生物固体如果生产并符合其准则,则是安全的。我们满足指南中的所有要求。
要了解有关生物固体指南的更多信息,请访问新南威尔士州EPA和新南威尔士州健康。
如何产生生物固体
在废水处理过程中,当固体与废水分离时,它们会经过生物处理。这减少了吸引昆虫和害虫的病原体,气味和颗粒。
我们生产的所有生物固体均在实验室进行测试,以确保它们遵守保护人类健康和环境的法规。我们2500万美元的生物固体计划使用了最新的技术和治疗过程。这确保了我们可以:
- 恢复一系列用途的资源
- 继续保护公共卫生
- 减少气味
- 降低运营成本。
了解更多有关如何产生生物固体(167KB)。
如何使用生物固体
使用生物固体的示例
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生物固体的好处 |
农业 |
在植物生长过程中,生物固醇的营养成分缓慢释放。这增加了农作物的产量,提供了优越的水性能,并通过收获来代替从土壤中去除的养分。 |
堆肥 |
生物固体与其他有机材料混合,例如绿色废物,切碎的木材和木屑,并允许自然堆肥。该材料通常被混合到土壤中以改善土壤结构并有助于水。 |
土地康复 |
生物固体用于恢复矿场和退化的农业土地。 |