background; turbidity removal using inorganic coagulants such as iron and aluminum salts in water treatment processes causes environmental and human health concern. historically, the use of natural coagulant to purify turbid water has been practiced for a long time. recent research indicates that descurainia sophia seed can be effectively used as a natural coagulant to remove water turbidity. m...

A rapid turbidimetric method for the determination of cephalin-cholesterol flocculation is described. Greater specificity and photometric sensitivity have been achieved along with adequate precision. The test is standardized with the conventionalbarium sulfate turbidity standards usedfor other laboratory procedures. Definition of results in turbidity units is proposed, and photometric standardi...

background: entry of untreated wastewater of wool scouring factories has been associated with many environmental hazards because of high rate of pollution. presently effective treatment methods and reducing the costs of operation and maintenance from treatment units have always been under the attention of this industry owners. the aim of this survey is to present a suitable method for the treat...

against M. phlei and M. 8megmati8, using the medium of Dubos (1947), but the results were unsatisfactory, since the lower dilutions showed a turbidity which was undistinguishable from the growth of the organism. A point of minimum turbidity was noted however in each case, which may give some indication of the limiting dilution. This occurred with the triterpenoid acid at 1: 16,000 and with ungu...

OBJECTIVES A new rapid, automatic, and sensitive screening test useful to detect cryoglobulins in serum samples is proposed. DESIGN AND METHODS The increase of turbidity during the cryoglobulin aggregation was monitored spectrophotometrically in sera from 400 patients with clinical evidence of cryoglobulinemia related disorders and 100 controls. Results were correlated to those obtained by th...

The spatial and temporal distribution of suspended solids, turbidity, temperature, salinity, chlorophyll a and total phosphorus were estimated and mapped with various degrees of success in Matla Estuary using satellite (Landsat Thematic Mapper) imagery. All the indicators exhibit a similar spatial pattern within the estuary. High values are found at both the saltwater and freshwater ends of the...

Abstract. Turbidity sensor for water treatment applications are based on scattered light measurement. The electrooptical characteristic of light emitter and detector has a close relationship with the environmental temperature. Fluctuations in water temperature can potentially affect electronic components and cause output signal errors in turbidity sensor. Decrease or eliminate temperature erro...