Integration of Green Energy and Advanced Energy-Efficient Technologies for Municipal Wastewater Treatment Plants

Abstract

Wastewater treatment can consume a large amount of energy to meet discharge standards. However, wastewater also contains resources which could be recovered for secondary uses under proper treatment. Hence, the goal of this paper is to review the available green energy and biomass energy that can be utilized in wastewater treatment plants. Comprehensive elucidation of energy-efficient technologies for wastewater treatment plants are revealed. For these energy-efficient technologies, this review provides an introduction and current application status of these technologies as well as key performance indicators for the integration of green energy and energy-efficient technologies. There are several assessment perspectives summarized in the evaluation of the integration of green energy and energy-efficient technologies in wastewater treatment plants. To overcome the challenges in wastewater treatment plants, the Internet of Things (IoT) and green chemistry technologies for the water and energy nexus are proposed. The findings of this review are highly beneficial for the development of green energy and energy-efficient wastewater treatment plants. Future research should investigate the integration of green infrastructure and ecologically advanced treatment technologies to explore the potential benefits and advantages.

Distillery Stillage: Characteristics, Treatment, and Valorization

“…The promising method of decreasing energy cost may be using solar energy, which is considered the most abundant renewable energy source. However, this solution has only been tested in municipal wastewater treatment plants [ 91 ].…”

Wastewater purification technology by two­stage treatment in electrical device of a compact local installation

“…A review of publications [10,11] on wastewater purification and equipment designs shows that they mainly use earthen open windows and biological treatment, which is energy-intensive. Such treatment facilities occupy large territories, and the purification degree is 65-75 % of the dependent and even less oil products, which values affect the pollution of water resources and the atmosphere.…”

Application and Evaluation of Energy Conservation Technologies in Wastewater Treatment Plants

“…For the poor stability and randomness of wind energy itself, it is difficult to use it alone for the power supply of WWTPs. To make up for the shortcomings of wind energy and solar power generation, wind power is mainly combined with solar energy in WWTPs under the current technical conditions, which can realize wind-solar complementary power generation to supply energy to WWTPs [58,59]. This technology has been widely used in the field of wind energy utilization [60,61].…”

“…Intelligent sensors are installed in different locations of WWTPs to collect data on water quality, temperature, pressure, water, and chemical leakage, and transmit these data to data center through the Internet. By using these data, WWTPs can track wastewater flow, monitor wastewater leakage, monitor bacterial and microbial distribution, and achieve other functions [58]. A Spain WWTP using IoT has achieved a great performance.…”