Matrix-Associated Microbial Communities In A Nitrogen-Removing On-Site Wastewater Treatment System Are Largely Structured By Niche Processes.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of environmental quality"
DOI: 10.1002/jeq2.20422
Abstract: On-site wastewater treatment systems (OWTS) can be designed to promote microbial communities with naturally occurring metabolic functions desirable to wastewater treatment. Among such OWTS are nitrogen-removing biofilters (NRB), comprising a sand layer overlying a sand-lignocellulose… read more here.
Keywords: sand layer; wastewater treatment; matrix associated; sand ... See more keywords
Tunnel face failure mechanism with sand layer partial collapse
Sign Up to like & getrecommendations! Published in 2020 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-020-06074-3
Abstract: In this paper, a DEM model is proposed based on Particle Flow Codes (PFC) software, which simulates a sand layer collapse process in tunnel excavation of Qingdao subway project. The fluid–particle interaction was solved with… read more here.
Keywords: sand; collapse; tunnel; sand layer ... See more keywords
New Chemical Grouting Materials and Rapid Construction Technology for Inclined Shaft Penetrating Drift-Sand Layer in Coal Mine
Sign Up to like & getrecommendations! Published in 2018 at "Advances in Materials Science and Engineering"
DOI: 10.1155/2018/2797419
Abstract: Drift-sand layer is a common weak stratum in mine construction. The construction of the shaft passing over the drift-sand layer is very difficult. Traditional construction method faces many problems such as long construction period, high… read more here.
Keywords: construction; sand; sand layer; drift sand ... See more keywords
Experimental Study on Groutability of Sand Layer concerning Permeation Grouting
Sign Up to like & getrecommendations! Published in 2021 at "Advances in Materials Science and Engineering"
DOI: 10.1155/2021/6698263
Abstract: Permeation grouting is widely used in grouting engineering because of its low grouting pressure and minor disturbance to the stratum. However, influenced by the complex properties of sand layer and slurry, an accurate prediction of… read more here.
Keywords: layer; groutability sand; permeation grouting; sand layer ... See more keywords
Preservation of earthen relic sites against salt damages by using a sand layer
Sign Up to like & getrecommendations! Published in 2022 at "Indoor and Built Environment"
DOI: 10.1177/1420326x211060756
Abstract: Salt damage is one of the main problems facing the preservation of earthen sites in heritage museums. The use of salt-inhibiting materials on the surface of earthen sites to prevent damages could cause secondary damage.… read more here.
Keywords: sand layer; layer; water salt; preservation ... See more keywords