Results 61 to 70 of about 2,834 (212)

Effect of COD:N ratio on biological nitrogen removal using full-scale step-feed in municipal wastewater treatment plants

Sustainable Environment Research, 2020
This study investigated the effect of low and high chemical oxygen demand (COD):N ratios on biological nitrogen removal and microbial distributions in full-scale step-feed (SF) municipal wastewater treatment plants (WWTPs) in Thailand (SF1) and Taiwan ...
Supaporn Phanwilai, Pongsak Noophan, Chi-Wang Li, Kwang-Ho Choo   +3 more
doaj   +1 more source

Enhanced Phosphorus Removal From Municipal Wastewater via Cotreatment of Mine Drainage During Primary Clarification

Water Environment Research, Volume 98, Issue 2, February 2026.
Cotreating acid mine drainage with municipal wastewater in existing WWTPs can enhance phosphorus and BOD removal without compromising treatment performance. The approach offers a cost‐effective, infrastructure‐efficient solution that leverages existing plant capacity while decreasing nutrient loads and supporting environmental goals in mining regions ...
Benjamin Roman, Charles A. Cravotta III, Charles D. Spellman Jr., William H. J. Strosnider, Joseph E. Goodwill, Travis Tasker   +5 more
wiley   +1 more source

SKRINING BAKTERI METANOTROF, PELARUT POSFAT DAN NITROBACTER PADA LAHAN PERTANIAN KOTA SORONG

, 2022
The effects of greenhouse gases on daily life can cause damage to the balance of ecosystems and threaten the survival of living things. One of them is crop failure; food commodities and export products are reduced, causing food shortages and lowering the
Satria, Budi, Sukmawati, S, Farida, Anif, Rosalina, Febrianti, Nuryanto, N, Syafaati, Ayu Diah, Ponisri, P   +6 more
core   +1 more source

The Nitrobacter-denitrifiers ratio in soil indicates nitrate export risk to streams in temperate forest catchments

Ecological Indicators
The influence of forest tree species and their mineral nitrogen (N) uptake strategies on soil N cycling and its subsequent impact on stream nitrate concentrations remains poorly understood. We measured soil (de)nitrification, key (de)nitrifier abundances,
A. Paul, A. Legout, C. Lobreau, A. Delort, J. Gervaix, C. Creuze des Chatelliers, A. Reichard, B. Zeller, X. Le Roux, A. Florio   +9 more
doaj   +1 more source

Optimization of Growth Performance of Nile Tilapia (Oreochromis niloticus) in Biofloc Farming: Evaluating Growth Performance and System Stability Under Reduced Feeding Regimes

Aquaculture Research, Volume 2026, Issue 1, 2026.
This study assessed the effect of different feeding levels on the growth performance of Nile tilapia (Oreochromis niloticus) as well as on the stability of the biofloc system over a 9‐week experimental period. Three feeding levels were tested: BFT100 (100% of a complete ration), BFT75 (75% of a complete ration), and BFT50 (50% of a complete ration).
Lydie Bambi Langa, Amaël Bossan, Vincent Gennotte, Carole Rougeot   +3 more
wiley   +1 more source

First exploration of Nitrobacter diversity in soils by a PCR cloning-sequencing approach targeting functional gene nxrA

, 2008
Nitrite oxidoreductase (NXR) is the key enzyme responsible for the oxidation of NO2 to NO3 in nitrite-oxidizing bacteria. For the first time a molecular approach for targeting the nxrA gene was developed, encoding the catalytic subunit of the NXR, to ...
Poly, Franck, Degrange, Valérie, Wertz, Sophie, Brothier, Elisabeth   +3 more
core   +1 more source

Optimization of RNA extraction for bacterial whole transcriptome studies of low-biomass samples

iScience, 2022
Summary: We developed a procedure for extracting maximal amounts of high-quality RNA from low-biomass producing (autotrophic) bacteria for experiments where sample volume is limited.
Tom Verbeelen, Rob Van Houdt, Natalie Leys, Ramon Ganigué, Felice Mastroleo   +4 more
doaj   +1 more source

A Comprehensive Study of Biohopanoid Production in Alphaproteobacteria: Biosynthetic, Chemotaxonomical, and Geobiological Implications

Geobiology, Volume 23, Issue 6, November/December 2025.
ABSTRACT Bacteriohopanepolyol derivatives (BHPDs) and dia‐ and catagenetic products formed from these bacterial membrane modifiers are extensively used as biomarkers in molecular ecological and geoscience studies. Some BHPDs can be assigned to specific phylogenetic bacterial groups. With the vastly increasing availability of complete bacterial genomes,
Jaap S. Sinninghe Damsté, Michel Koenen, Vera Thiel, Nora Richter, Ellen C. Hopmans, Nicole J. Bale   +5 more
wiley   +1 more source

Evaluation of Nutrient Flow Through and Media‐Bed Aquaponic Systems

Aquaculture, Fish and Fisheries, Volume 5, Issue 5, October 2025.
ABSTRACT This study evaluates the performance of an integrated aquaponic system combining gravel bed and NFT modules within a recirculating loop, focusing on nutrient dynamics, plant growth and sensory quality. Conducted in a semi‐controlled greenhouse, the system utilized Nile tilapia (Oreochromis niloticus) and cultivated lettuce, Swiss chard and ...
Belay Abdissa, Melkamu Gete, Esubalew Muluneh   +2 more
wiley   +1 more source

Primjena mikroorganizama u procesima uklanjanja dušikovih spojeva iz otpadnih voda [PDF]

Kemija u Industriji
Biološko uklanjanje dušikovih spojeva uporabom mikroorganizama ključan je proces u mnogim postrojenjima za pročišćavanje otpadnih voda. Iznimno korisnim u uklanjanju dušikovih spojeva pokazali su se predstavnici amonijak oksidirajućih bakterija i arheja ...
Maja Mitrović, Tonči Rezić
doaj   +1 more source