Towards a model for road runoff infiltration management

Abstract

In human society, there is a demand for sustainable solutions for water preservation and efficient treatment systems. An important water reservoir is road runoff defined as rainwater leaching from roads, loading micropollutants and infiltrating the soil. We aimed to study this poorly understood feature using large-scale metabolomic analysis coupled with analysis of soil physico-chemical properties and molecular chemical similarity enrichment. A total of 2406 micropollutants were assayed to understand their distribution and assess the trapping abilities of a road runoff infiltration system composed of a sedimentation pond and an infiltration pond. Here, we confirm the essential role of the infiltration pond in preventing environmental contamination and propose a model correlating micropollutant abundance and the soil physico-chemical properties. We demonstrate that sand in infiltration ponds is a key player, helping retain 86% of the micropollutant abundance and propose a model that could be easily applied for road runoff management.

Anthropogenic, Carbon-Reinforced Soil as a Living Engineered Material

“…Soil organic matter contains living cells and necromass from microorganisms, plants, and fauna, , and humic matter is formed by complex abiotic and biotic chemical processes from the leftovers of living species. − Soil microbiology, as bacteria, fungi, and archaea, is an exciting key asset in the soil system. , A teaspoon of rich soil can contain a billion bacteria. , There is only little known about the habits and the mutual interactions of soil microbes, as most of these organisms cannot be cultured as a single species culture in the lab. This is already a clear indication that they are living in complex, self-structured communities depending on each other, that is, many of them are specialists within a living materials system, not to be isolated from their complex matrix or the microbial neighborhoods and exchange patterns. − New genetic tools developed to analyze the gut microbiome, however, promise help to also resolve more complex phenomena in the soil microbiome.…”

“…12,13 A teaspoon of rich soil can contain a billion bacteria. 14,15 There is only little known about the habits and the mutual interactions of soil microbes, as most of these organisms cannot be cultured as a single species culture in the lab. This is already a clear indication that they are living in complex, self-structured communities depending on each other, that is, many of them are specialists within a living materials system, not to be isolated from their complex matrix or the microbial neighborhoods and exchange patterns.…”

Periodic variations in stormwater quality in the roadside ponds system and its possible uses

“…Their main components are simple structures such as settling ponds, in ltration basins and retention ponds. These facilities are where natural selfpuri cation processes take place (Maurer et al, 2021;Middleton & Barrett, 2008;Scholz & Kazemi Yazdi, 2009).…”