Plastics are synthetic materials made from a range of organic polymers that are capable of being moulded when soft. Most plastics are currently made from fossil fuels, typically the by-products from the processing of oil or natural gas.

This paper discusses the history of urban infrastructure planning in the 20th century.

Sustainable Sydney 2030 outlined the aspiration of our community and businesses for our local government area to be an environmental leader on a global scale. To guide the implementation of Sustainable Sydney 2030, the City developed a series of environmental master plans and strategies between 2008 and 2015. This strategy and action plan combines the insights and data from these documents.

This is the Committee on Climate Change’s (CCC) tenth statutory Progress Report to Parliament – an important moment to reflect on the UK's achievements in tackling climate change to date. 2018 also marks the tenth year since the Climate Change Act came into force and, with it, the creation of the CCC as an independent statutory adviser. 

In this study, the impacts of high-saline sewage on AGS development, performance and ecology were investigated using molecular microbiology methods.

A diverse range of volatile organic compounds (VOCs) are emitted from wastewater biosolids processing. Odorous emissions are predominately made up of volatile sulfur compounds (VSCs) which are typically the only odorants measured. However, a range of VOCs are known to contribute to malodours yet previous studies often overlook the contribution of VOCs in comparison with VSCs.

Odor emissions from biosolids limit opportunities for their beneficial reuse by land application. Odorous emissions are affected by the operation of stabilization processes via methods such as anaerobic digestion, aerobic digestion, alkaline treatment, thermal drying, or composting.

Odorous emissions from wastewater biosolids processing can cause nuisance impacts to the surrounding community. Odour Wheels are an effective tool for environmental odour management, but have yet to be provided for wastewater biosolids processing.

Highlights

The composition of wastewater in sewer catchments is known to affect the performance of wastewater treatment plants (WWTPs). However, there is limited knowledge as to how catchment characteristics, such as types of catchment industries, impact odour emissions from downstream sludge processing and biosolids management.

Sustainable waste management requires an integrated planning and design strategy for reliable forecasting of waste generation, collection, recycling, treatment and disposal for the successful development of future residential precincts.

Highlights

• Sulfur flows were mapped through biosolids processing at six WWTPs.
• Flows analysed in thickening, digestion, dewatering and odour control.
• High recovery of sulfur in biosolids linked to efficient solids recovery.
• Higher iron content in digesters linked to lower sulfur flows in biogas.

Abstract