Background Digested sludge is a good source of plant nutrients. However, depending on
the feedstock, it might contain heavy metals, metalloids, organic compounds, pathogens …

The study reported and analyzed the current state of wastewater treatment plants (WWTPs)
in urban China from the perspective of treatment technologies, pollutant removals, operating …

Saline-alkali soil has become significant problem for global agriculture and food security as
these soils have poor physicochemical conditions and reduce crop production by causing a …

Pyrolysis is a thermochemical process that permits the conversion of biomasses into energy
(bio-oil and biogas) and a solid residue called biochar. The generation of biochar from …

In recent years, the biomass was directly used extensively in agriculture due to its low cost
and convenience. Increasingly serious soil pollution of heavy metals may pose threats and …

Sewage sludge (SS) is increasingly used as an environment functional material to reduce or
control pollution and improve plant growth because of the large amounts of carbon and …

Organic nutrient sources such as farmyard manure, sewage sludge, their biogas digestates
or other animal by-products can be valuable fertilizers delivering organic matter to the soil …

The mining industry has historically served as a critical reservoir of essential raw materials
driving global economic progress. Nevertheless, the consequential by-product known as …

Sewage sludge is by-product in the process of centralized wastewater treatment. Land
application of sewage sludge is one of the important disposal alternatives. Mudflats in the …

Growing bioenergy crop on marginal lands has the potential to minimize land use conflicts
and meet global energy demand. The newly reclaimed mudflats through sewage sludge …