Performance of Reactive Nitrogen in Leachate Treatment in Constructed Wetlands

Abstract

Reactive Nitrogen (Nr) is produced from natural and human activity, the use of fuel, the activities of industry, and agriculture. The Nr from agriculture is used to produce food crops, but excess Nr has an impact on the surrounding land. Landfills also generate Nr from the decomposition of waste which then releases the leachate containing Nr. This study aimed to determine the value of Nr generated by landfills, the effect of Nr on the environment, and the performance of Nr when used in Constructed Wetlands (CW). Review papers were collected from several studies and publications. Nr commonly found in leachate landfills include: NH 4 , NH 3 , NO 2 , and NO 3 . The Nr present in landfill leachate at CW can be used for proper plant development and growth, which significantly increases and enhances its quality and yield by playing an important role in the biochemical and physiological functions of plants.In addition, the content of hazardous substances in landfill leachate can also be processed using CW. This review paper discusses the effects of Nr from human activities ending up in landfills. The landfill leachate with Nr content can be used in CW for plant growth.

Cleaning up black carbon using plant strategies

“…Plant empowerment is focused on environmental quality management and treatment for various pollutants and media (53). In connection with global warming that is increasingly evident today, an increase in the earth's surface temperature can increase water evapotranspiration (54) and the earth's surface in the form of aerosols, which carry various physical, chemical and biological substances into the air (55,56). Considering the role of plants in removing pollutants (57,58), the aerosol pathway in the phytoremediation process is described as presented in Fig.…”

Enhanced leachate phytodetoxification test combined with plants and rhizobacteria bioaugmentation

“…However, rainfall, evapotranspiration, groundwater infiltration, runoff, and the level of compaction in the landfill are the primary influencing factors on leachate production [ 85 ]. Therefore, various techniques are used to control water ingress into the landfill, including installing impermeable layers and covers to minimize leachate [ 14 , 34 , 135 ]. The analyzed leachate samples were taken from leachate near the landfill that was still operating to be categorized as young leachate.…”

“…NLF-7-7, Castellaniella defragrans 65 Phen , and N. communis , while in the phylum Acidobacteria is Candidatus Solibacter usitatus Ellin6076 and Luteitalea pratensis . Acidobacteria Species of rhizobacteria in plants can help with leachate processing and help plant growth [ 14 ]. The genus Comamonas has an excellent ability to reduce nitrate in the denitrification process by combining the oxidation of the substrate present in the leachate with the reduction of nitrate, thus playing an important role in the elimination of nitrate and organic compounds [ 130 , 150 ].…”

Range finding test and measurement of wet weight and dry weight of Vetiveria zizanioides as an initial stage of phytoremediation of soil contaminated with used lubricants

“…Acclimatization also gives rhizobacteria time to form colonies, which will help convert the hydrocarbons in the used lubricants into simple organic compounds that can be absorbed and degraded by plants (9). Such bacteria are commonly referred to as Plant Growth-Promoting Rhizobacteria (PGPR) (10).…”