The dewatering performance and fractal characteristics of alum sludge from a drinking-water treatment plant were investigated in this study. Variations in residual turbidity of supernatant, dry solid content (DS), specific resistance to filtration (SRF), floc size, fractal dimension, and zeta potential were analyzed. Sludge dewatering efficiency was evaluated by measuring both DS and SRF. Resul...

The glycoside composition and sequence of an extracellular polysaccharide flocculant of Klebsiella pneumoniae H12 was analyzed. GC and HPLC analysis of the acid-hydrolysate identified its constituent monosaccharides as D-Glc, D-Man, D-Gal, and D-GlcA in an approximate molar ratio of 3.9:1.0:2.3:3.6. To analyze the glycoside sequence, the polysaccharide was partially hydrolyzed by acid and enzym...

27 normal, 173 cancer, and 39 noncancen, diseased sena. Certain types (e.g., lung cancer) gave a higher than 90 per cent positive flocculation with some steroids, but interference by other diseases was severe (up to 74 per cent for tuberculosis). A second series of tests with compounds related to 3,3-bisethylthio-5a-androstan-17@-yl acetate substantially confirmed the first series. The floc was...

This paper presents the influence of sewage sludge (SS) on biometric parameters, absorption mineral elements and thermal characteristics sweet sorghum (Sorghum bicolor L.) grown Technosol. Two types were used: unmodified modified with DAMET flocculant. Each type was applied in three doses (expressed as dry matter basis, DM): 20 t DM/ha, 40 DM/ha 60 respectively. The yield fresh biomass depended...

The paper considers the reconstruction of one devices technological line for brine purification at Sayanskkhimplast JSC. device is designed to produce a hydrolyzed flocculant used precipitate insoluble particles in during soda-caustic

A correct separation of solids from liquid fraction is crucial for a successful treatment of swine manure. For this reason an in-depth study of flocculant addition on different livestock wastewaters was carried out. Two flushed swine manure matrices, namely the mixture from nursery and feeder-to-finish pigs and the feeder-to-finish slurry alone, were tested for solids and nutrients removals fro...