Sulfated galactofucan from Sargassum fusiforme protects against postmenopausal osteoporosis by regulating bone remodeling.

Osteoporosis is a degenerative bone disease highly prevalent in older women, causing high morbidity and mortality rates. Fourteen kinds of fucoidan were isolated from Sargassum fusiforme through acid (named as SFS), alkaline (SFJ) and water (SFW). SFW was passed through an anion exchange column to obtain SFW-0, SFW-0.

An enriched ammonia-oxidizing microbiota enables high removal efficiency of ammonia in antibiotic production wastewater.

High ammonia concentration hinders the efficient treatment of antibiotic production wastewater (APW). Developing effective ammonia oxidation wastewater treatment strategies is an ideal approach for facilitating APW treatment. Compared with traditional nitrification strategies, the partial nitrification process is more eco-friendly, less energy-intensive, and less excess sludge.

[Nitrogen Removal Performance of a Sulfur/Pyrite Autotrophic Denitrification System].

In order to search for an economical, rapid, and highly efficient nitrogen removal process for sewage, a sulfur/pyrite packed column reactor was fed with low C/N municipal sewage. The effects of temperature, the sulfur-to-pyrite volume ratio, and hydraulic retention time (HRT) on nitrogen removal were studied. The results showed that with an influent total nitrogen (TN) of 40 mg·L, the optimal HRT of the No.