Rapid start-up and operational characteristics of partial denitrification coupled with anammox driven by innovative strategies.

The Partial Denitrification-Anammox (PD/A) process established a low-consumption, efficient and sustainable pathway for complete nitrogen removal, which is of great interest to the industry. Rapid initiation and stable operation of the PD/A systems were the main issues limiting its engineering application in wastewater nitrogen removal. A PD/A system was initiated in a continuous stirred-tank reactors (CSTRs) in the presence of low concentration of organic matter, and the effects of organic matter types and COD/NO-N ratios on the performance of the PD/A system, and microbial community characteristics were explored.

Efficient nitrogen removal and substrate usage in integrated fixed-film activated sludge-anammox system under seasonal temperature variation.

To elucidate how integrated fixed-film activated sludge (IFAS) system favors nitrogen removal performance under seasonal temperature variations, two push-flow reactors were operated with and without carriers under the same operating conditions. The results show that the IFAS system had significant advantages in shock response and low temperature adaptation, with a nitrogen removal rate of 0.37-0.

Every refuge has its price: Ostreobium as a model for understanding how algae can live in rock and stay in business.

Ostreobium is a siphonous green alga in the Bryopsidales (Chlorophyta) that burrows into calcium carbonate (CaCO) substrates. In this habitat, it lives under environmental conditions unusual for an alga (i.e.

A New Species of Predatory Nudibranch (Gastropoda: Trinchesiidae) of the Scleractinian Coral .

Members of the nudibranch genus are common predators of scleractinian corals, but currently this genus has 10 described species only. Here we describe sp. nov.

A New Species of Predatory Nudibranch (Gastropoda: Trinchesiidae) of the Coral .

Some nudibranchs are predators of scleractinian corals, but little is known about their diversity. Here we describe sp. nov.