固体回收

We recycle more than water\r\n

Our role in protecting the environment doesn't end with water recycling. We aim to beneficially re-use as many of the by-products of wastewater treatment as possible. In some cases, we can turn waste into valuable products like biosolids and renewable energy.

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我们比水回收更多

我们在保护环境方面的作用并没有结束水回收。我们的目标是重新使用的许多副产品废水处理尽可能。在某些情况下,我们可以将浪费变成有价值的产品生物固体可再生能源


Making biosolids\r\n"}}" id="T1" class="cmp-text">

制作生物固体

What are biosolids?
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We produce organic solids (sludge) during wastewater treatment.

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This sludge is collected and processed to convert it into a safe, stable, nutrient rich fertiliser product called biosolids.

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Are biosolids safe?

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NSW Health and NSW Environmental Protection Authority (EPA) have confirmed biosolids are safe if they are made and used following the EPA’s biosolids guidelines.
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\r\nThe National Association of Testing Authorities accredit the laboratories that test all our biosolids for contaminant levels and stability. This determines the grade of product and how the biosolids should be used.

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什么是生物固体?

我们生产有机的固体(污泥) 期间废水处理

收集并处理该污泥,以将其转换为一种称为生物固醇的安全,稳定,富含营养的肥料产品。

生物固体安全吗?

新南威尔士州健康新南威尔士州环境保护局(EPA)已经确认生物固醇是安全的,如果它们被制成并使用后使用EPA的生物固体指南

全国测试当局协会认可测试我们所有生物固体的实验室,以确保污染物水平和稳定性。这决定了产品等级以及如何使用生物固体。

生物固体可用于农场。

你可知道?
一年来,我们从悉尼的废水中生产了大约18万吨的湿生物固体。那超过9,000辆完整的巴士。

How do we make biosolids?
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  1. Separation – We collect the sludge (a mixture of scum and sludge) using a separation technique called sedimentation.
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  3. Thickening – We use mechanical and chemical methods to reduce the water content and thicken the sludge. Some treatment plants use gravity thickeners, centrifuges or dissolved air flotation.
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  5. Digestion – We use either aerobic or anaerobic digesters to break down and stabilise the sludge. This makes nutrients available to plants, reduces pathogens to low levels and reduces odour.
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  7. Dewatering – We use high-speed centrifuges or belt press machines to remove water from the biosolids. This helps make it lighter for easy transport in trucks.
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Learn more about How Biosolids are Produced (167 KB).

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我们如何制作生物固体?

  1. 分离- 我们收集污泥(混合浮渣和污泥)使用称为的分离技术沉降
  2. 增厚- 我们使用机械和化学方法来减少水含量并增稠污泥。一些治疗厂使用重力增稠剂,离心机或者溶解的空气浮选
  3. 消化- 我们使用有氧运动或者厌氧消化者分解和稳定污泥。这使植物可用营养,将病原体降低到低水平并减少气味。
  4. 脱水- 我们使用高速离心机或皮带压机从生物固体中去除水。这有助于使其更轻松,以便于卡车易于运输。

学习更多关于如何产生生物固体(167 kb)。

What can you do to help?\r\n

You can help us recycle our waste into biosolids by:
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  • using environmentally friendly detergents and cleaning products
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  • putting only pee, poo and toilet paper in the toilet
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  • scraping food leftovers into the compost or bin before you wash up
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  • dispose of household chemicals using your council's Household Chemical CleanOut services.
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你能帮什么忙?

您可以通过以下方式帮助我们将废物回收为生物固体。

  • 使用环保洗涤剂和清洁产品
  • 只将小便,便便和厕纸放在厕所里
  • 洗涤之前,将食物刮入堆肥或垃圾桶中
  • 使用您的理事会处理家用化学品家用化学清洁服务。

Benefits of biosolids\r\n

What are the benefits of producing biosolids?

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生物固体的好处

产生生物固体有什么好处?

Producing biosolids helps us reduce our environmental footprint by:

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  • minimising the discharge of solids to our oceans and rivers
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  • recycling a valuable resource that helps minimise disposal to landfill
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  • reducing the amount of chemical fertilisers used on farms
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  • producing carbon neutral biogas used to generate renewable energy to power our treatment plants.
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Considering biosolids as a resource instead of a waste product is a part of our circular economy.

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生产生物固体有助于我们通过以下方式减少环境足迹。

  • 将固体排放到我们的海洋和河流中
  • 回收有助于最大程度地减少处置垃圾填埋场的宝贵资源
  • 减少农场使用的化肥量
  • 产生用于产生可再生能源的碳中性沼气为我们的治疗厂供电。

将生物固体作为一种资源而不是废物是我们循环经济的一部分。

生物固体可用于牧场。

How are biosolids part of a circular economy?\r\n

A circular economy is a set of principles that values all things as resources rather than products and waste. It aims to eliminate waste, circulate products and materials so they're used more than once and regenerate nature.

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We used to think of the solids left over from wastewater treatment as waste products to be disposed of. But, when we look closer we find that they're full of useful resources – things like organic matter, nutrients and healthy bacteria. Valuing and re-using resources found in wastewater, like biosolids, is part of circular economy thinking.

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Can you think of other connections between water, materials and energy? It's something we're working on.

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We can draw inspiration from the Earth's natural cycles including the natural water cycle, nutrient cycles (like the nitrogen cycle in wastewater treatment) and energy cycles.

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生物固体如何在循环经济中的一部分?

循环经济是一组原则,将所有事物都视为资源而不是产品和浪费。它旨在消除浪费,循环产品和材料,以使它们不止一次使用并再生自然。

我们曾经将废水处理中留下的固体视为要处理的废物。但是,当我们仔细观察时,我们发现它们充满了有用的资源 - 诸如有机物质,营养和健康细菌之类的东西。像生物固体一样,在废水中发现并重复使用资源是循环经济思维的一部分。

您能想到水,材料和能源之间的其他联系吗?这是我们正在努力的事情。

我们可以从地球自然周期中汲取灵感自然水循环,营养周期(如废水处理中的氮循环)和能量周期。

What are the benefits of using biosolids?
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Uses

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Benefits

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Agriculture and forestry

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  • Nutrients from biosolids are released slowly during plant growth.
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  • Increases crop production.
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  • Biosolids hold water in soil better, increasing drought resistance.
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  • Replaces nutrients removed from soil by harvesting.
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Composting

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  • Biosolids can be mixed with other organic materials such as green waste, shredded timber and sawdust and allowed to compost naturally.
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  • This material can be mixed into the soil to improve soil structure and help hold water.
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Land rehabilitation

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  • Biosolids are used to restore degraded mine, construction or agricultural sites.
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使用生物固体有什么好处?

用途

好处

农业和林业

  • 在植物生长过程中,生物固醇的营养成分缓慢释放。
  • 增加农作物的产量。
  • 生物固体更好地在土壤中持有水,从而增加了耐干旱的能力。
  • 通过收获来代替从土壤中去除的养分。

堆肥

  • 生物固体可以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。
  • 该材料可以混合到土壤中,以改善土壤结构并帮助水。

土地康复

  • 生物固体用于恢复矿山,建筑或农业场所的退化。

Using biosolids\r\n

How are biosolids used?

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We use some biosolids directly without further processing. Some biosolids go on to be processed further for indirect uses.

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Direct use

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Around 73% of the biosolids produced from our treatment plants are directly applied to agricultural soils.

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Over 40 farms across the central west and south west of NSW use our biosolids to help improve soil, mainly in broad-acre farms.

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These large farms grow canola, wheat, oats, barley and pastures.

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The biosolids are spread and mixed into the soil before sowing the crops. The harvested parts of these crops don’t come into direct contact with the soil/biosolids mixture.

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Some animals, such as sheep and cattle, may graze on crops and pastures grown in biosolids. There are withholding periods for farm animals fed on biosolids-treated pastures.

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使用生物固体

如何使用生物固体?

我们直接使用一些生物固体而无需进一步处理。一些生物固体继续进行间接用途的进一步处理。

直接使用

从我们的治疗厂产生的生物固体中,约有73%直接应用于农业土壤。

新南威尔士州中部西部和西南部的40多个农场使用我们的生物固体来帮助改善土壤,主要是在宽阔的农场中。

这些大型农场种植了低芥酸菜籽,小麦,燕麦,大麦和牧场。

在播种作物之前,将生物固体散布并混合到土壤中。这些农作物的收获部分没有直接与土壤/生物固体混合物接触。

一些动物,例如绵羊和牛,可能会在生物固体中生长的农作物和牧场。在经过生物固醇治疗的牧场上喂养的农场动物有预扣时期。

农民使用特殊的机械将生物固体撒在地面上。

农民可以使用生物固体种植食物作为绵羊。

Indirect use\r\n

We send the remaining 25% of our biosolids for further processing. Biosolids can be mixed with other materials such as green waste and further composted. These products are tested to ensure they're safe for use in the same way as any other composted product.

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These composted biosolids are used in agriculture, horticulture, mine rehabilitation and gardens and parklands within Sydney.

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间接使用

我们将其余25%的生物固体发送给进一步加工。生物固体可以与其他材料(例如绿色废物)混合,并进一步堆肥。对这些产品进行测试,以确保它们以与其他堆肥产品相同的方式安全使用。

这些堆肥生物固体用于悉尼境内的农业,园艺,矿山康复以及花园和公园。


Making renewable energy\r\n

How can we make renewable energy?

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We can use cogeneration and co-digestion to make heat and energy from biosolids to help power the rest of the treatment plant.

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Learn more about wastewater treatment and energy management and climate change.

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制作可再生能源

我们如何制作可再生能源?

我们可以使用热电联产和共同消化力从生物固体中产生热量和能量,以帮助其余的治疗厂供电。

学习更多关于废水处理能源管理和气候变化

Cogeneration\r\n

Cogeneration is the production of electricity and heat at the same time.

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We can use the electricity and heat to reduce the overall energy demand of a wastewater treatment plant.

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In a wastewater system, the anaerobic digestion of organic waste can be used to produce methane gas. 

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This gas can be used to power a combustion engine that drives an electricity generator. 

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The heat generated from the combustion engine can then be used to warm the digester and improve its efficiency.

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We already use cogeneration at a number of plants. We're looking to increase our cogeneration capacity at Bondi, Malabar and North Head.

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热电联产

高温性是同时发电和热量的产生。

我们可以使用电力和热量来减少废水处理厂的整体能源需求。

在废水系统中,有机废物的厌氧消化可用于产生甲烷气体。

该气体可用于为驱动发电机的燃烧发动机供电。

然后,可以使用燃烧发动机产生的热量来加热消化器并提高其效率。

我们已经在许多植物上使用了热电联产。我们正在寻求提高邦迪,马拉巴尔和北头

卧龙卫水回收厂的热电联产。

Co-digestion\r\n

Co-digestion takes liquid organic waste from restaurants and other sources and combines it with solids from the wastewater system. This mix is then digested to produce methane gas and biosolids.

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In late 2011, we began exploring the possibilities of co-digestion and the benefits of treating organic waste as a resource at Cronulla Wastewater Treatment Plant.

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This work is still in the early stages, but it's producing some impressive results with a lot of promise for the future.

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The benefits of using co-digestion:

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  • It diverts organics, like food scraps, from landfill.
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  • It uses existing infrastructure.
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  • It generates renewable energy.
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  • It has low carbon emissions.
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共同消化

共同消化从餐馆和其他来源获取液体有机废物,并将其与废水系统的固体结合使用。然后将这种混合物消化以产生甲烷气体和生物固醇。

2011年底,我们开始探索共同消化的可能性,以及将有机废物作为资源的好处克罗纳拉废水处理厂

这项工作仍处于早期阶段,但为未来带来了很多希望。

使用共同消化的好处:

  • 它从垃圾填埋场转移了有机物,例如食物废料。
  • 它使用现有的基础架构。
  • 它产生可再生能源。
  • 它的碳排放量低。

Seeing biosolids in action\r\n

Where can I see biosolids being used?

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In 2020, we worked with Australian Native Landscapes to build a garden at our education centre within Penrith Water Recycling Plant. You can see our garden when you visit us. Request an excursion.

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We used recycled composted biosolids from our treatment plants and planted drought tolerant, low maintenance native plants. We collect and use rainwater to conserve our drinking water.

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We'll be watching how the garden thrives over time. It's a great example of how we can contribute to liveable cities.

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看到生物固体的作用

在哪里可以看到使用生物固体?

2020年,我们与澳大利亚本地景观合作,在我们的教育中心建造一个花园必威客服在线彭里斯水回收厂。访问我们时,您可以看到我们的花园。请求游览

我们用了再生堆肥生物固体从我们的治疗厂和种植耐旱的低维护本地植物中。我们收集和使用雨水来节省饮用水。

我们将观看花园随着时间的流逝如何蓬勃发展。这是我们如何做出贡献的一个很好的例子宜居城市

生物固体花园

雨水罐和泵到水花园。


教师资源

水和固体中的聚合物回收(162KB)- 事实说明书。

词汇表- 找到关键词和行业术语的定义。


幕后

想参观我们的一个网站吗?我们为学校,大学和社区团体提供免费游览和技术之旅。

Biosolids\r\n

A solid substance formed from the by-products of wastewater treatment. These solids can be beneficially used by agriculture or forestry.

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生物固体

由废水处理的副产品形成的固体物质。这些固体可以由农业或林业有益地使用。

Organic\r\n

Material from something that was once living but has now decayed.

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有机的

曾经活着但现在已经腐烂的东西的材料。

Sludge\r\n

Solid matter that is removed during wastewater treatment. It can be processed into a material called biosolids.

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污泥

在废水处理过程中去除的固体物质。它可以加工成一种称为生物固体的材料。

Scum\r\n

Any material that floats to the surface of wastewater during treatment, usually removed in sedimentation tanks.

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浮渣

任何在处理过程中漂浮在废水表面的材料,通常在沉积罐中去除。

Sedimentation\r\n

Sedimentation is a physical wastewater treatment process used to settle out suspended solids in water under the influence of gravity.

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沉降

沉积是一种物理废水处理过程,用于在重力影响下将悬浮的固体固定在水中。

Aerobic\r\n

Requiring oxygen.

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有氧运动

需要氧气。

Anaerobic\r\n

Able to live without oxygen.

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厌氧

能够没有氧气的生活。

Stabilise\r\n

All biological and chemical reactions within the biosolids have been reduced to a minimum standard.

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稳定

生物固体中的所有生物和化学反应已降低到最低标准。

Recycled composted biosolids\r\n

Biosolids further treated and composted with other recycled waste. Usually for indirect use.

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再生堆肥生物固体

生物固体进一步处理并堆肥其他可回收废物。通常用于间接使用。

Renewable energy\r\n

Renewable energy comes from natural resources that never run out.

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可再生能源

可再生能源来自从未用完的自然资源。

Centrifuges\r\n

Devices that uses centrifugal (outward rotating) force to separate various components of a fluid.

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离心机

使用离心(向外旋转)力来分离流体各个组件的设备。

Dissolved air flotation\r\n

A chemical separation technique used to remove suspended solids and fats, oils and grease from the wastewater.

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溶解的空气浮选

一种化学分离技术,用于从废水中去除悬浮的固体和脂肪,油和油脂。


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