Microbial characteristics of nitrifiers, denitrifiers and anammox bacteria on different support media to treat space mission wastewater

Dai, Fei; Prá, Marina Celant De; Vanotti, Matías B.; Gilmore, Kevin R.; Cumbie, William E.

doi:10.1016/j.jenvman.2018.12.008

Cited by 16 publications

(3 citation statements)

References 35 publications

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“…In our experiments we found them to be up to 12.97%. Other authors reported that the share of anammox bacteria treating landfill leachate is approximately 20% [47,48].…”

Section: Resultsmentioning

confidence: 99%

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2021

BCC

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The National Research Programme "Innovative Low-Toxic Bioactive Systems for Precision Medicine (BioActiveMed)" was approved by DCM №658/14.09.2018 and is performed on the basis of a signed agreement Grant DO1-217/30.11.2018 between Ministry of Education and Science and Bulgarian Academy of Sciences (BAS). A prerequisite for the implementation of the NRP BioActiveMed is the fact that Bulgaria, with its unique climatic and ecological factors, offers an amazing variety of plant and animal species. Isolated extracts contain a series of bioactive compounds that resembles combined therapy with several synthetic compounds. It is well known that extracts from natural products are less toxic than synthetic and are better tolerated by the human body. Therefore, the proposed in the Programme approach is one of the key to overcoming multiple drug resistance.The Programme is focused on the development of new low toxic bioactive substances and systems containing extracts of natural sources (of plant or animal origin) from Bulgaria for the prevention and support of the therapy of certain diseases. The first step is the isolation and purification of bioactive substances of plant and animal origin, their appropriate incorporation in suitable innovative systems and development of new methodologies for their characterization and determination of quality and applicability as new products in personalized and preventative medicine. One of the planned long-term applications is the implementation of new innovative healthy and safe food supplements and cosmetics with a preventive potential for personalized medicine.The research has been carried out with the participation of leading scientists with proven scientific capacity, as well as with the active participation of young scientists and PhD students from the Consortium formed. The leading organization is the Bulgarian Academy of Sciences and the following scientific organizations (seven scientific units from the BAS) and higher education organizations with the highest capacity in the field of the Programme are

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“…In our experiments we found them to be up to 12.97%. Other authors reported that the share of anammox bacteria treating landfill leachate is approximately 20% [47,48].…”

Section: Resultsmentioning

confidence: 99%

Untitled

2021

BCC

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“…Nonetheless, studies have kept investigating different synthetic and natural biofilm carriers in order to gather as much information as possible regarding their performance in wastewater treatment and biofilm development. Past studies also strived to form stable and sheltered biofilms, 8,12‐14 and even characterized microbial developments on assorted support media and examined novel biofilm carriers such as natural rice husk, 15 bamboo charcoal, 16 peach pit, 17 and wood chips 18 …”

Section: Introductionmentioning

confidence: 99%

“…Past studies also strived to form stable and sheltered biofilms, 8,[12][13][14] and even characterized microbial developments on assorted support media and examined novel biofilm carriers such as natural rice husk, 15 bamboo charcoal, 16 peach pit, 17 and wood chips. 18 Unfortunately, studies have continued to examine few biofilm carriers repeatedly, without investigating a large number of biofilm carriers in a single study under the same conditions. Also, little research has considered and explained the impact of different biofilm carriers, and enormous efforts have been expended on kinematic equations along with statistical data (e.g., mass transfer within a developed biofilm).…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of biofilm carriers of varying shapes, sizes, and materials for wastewater treatment in fixed bed biofilm reactor: a qualitative study of biocarrier performance

Al‐Amshawee

Yunus

Alalwan

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND Biofilm carriers were introduced in the early 1990s mainly to abate chemical oxygen demand (COD). However, studies have continued investigating few biocarriers repeatedly, without studying a large number of carriers in a single study under similar conditions. RESULTS The current study investigated the performance of nine synthetic and eight natural biofilm carriers for 7 days of palm oil mill effluent (POME) treatment in terms of COD removal. A fixed bed biofilm reactor (FBBR) was 100% packed with biocarriers and operated at 35 °C. Performance based on the 7th day COD removal could be ranked in the following order: green ammonia absorption stone (91%), K1 micro (88%), coral sand (87.8%), volcanic stone (86.6%), Micro Media (85.5%), 1.6 cm BioBall (85%), pebble (82.4%), porous ceramic ring (82.3), K1 (82.1%), non‐porous ceramic ring (80.9%), brown ammonia absorption stone (78.6%), biological filter (77.7%), Ultra Media (76.8%), blue media (69.3%), 3.0 cm BioBall (68.8%), 2.5 cm BioBall (66.5%), and loofah sponge (63%). CONCLUSION The smallest carrier, K1 micro, yielded the highest COD removal (88%) on day 7 among the other synthetic carriers, while green ammonia absorption stones provided the highest quality effluent from day 1 (3565 mg COD L−1) to day 7 (780 mg COD L−1) and delivered the shortest start‐up compared with all natural and synthetic carriers. The discussion revealed that all carrier functionalities (i.e., scale, shape, surface pores, roughness, material, surface area, porosity, and durability) play a key role in deciding carrier quality. The current study also introduced ‘carrier efficiency limit’, which refers to the carrier's capacity to entrap biomass and immobilize microorganisms. © 2022 Society of Chemical Industry (SCI).

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Biocarriers for biofilm immobilization in wastewater treatments: a review

Al‐Amshawee

Yunus

et al. 2020

Environ Chem Lett

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Microbial characteristics of nitrifiers, denitrifiers and anammox bacteria on different support media to treat space mission wastewater

Cited by 16 publications

References 35 publications

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Experimental investigation of biofilm carriers of varying shapes, sizes, and materials for wastewater treatment in fixed bed biofilm reactor: a qualitative study of biocarrier performance

Biocarriers for biofilm immobilization in wastewater treatments: a review

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