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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Study of fluvial water treatability using gamma-polyglutamic acid based biopolymer coagulant

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Author(s):
Campos, Valquiria [1] ; Domingos, Janaina M. F. [1] ; Dos Anjos, Diego N. [1] ; Lira, Vivian S. [1]
Total Authors: 4
Affiliation:
[1] Univ Estadual Paulista, UNESP, ICTS, Ave Tres Marco 511, BR-18087180 Sorocaba, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Anais da Academia Brasileira de Ciências; v. 91, n. 3 2019.
Web of Science Citations: 0
Abstract

Successful treatment of surface water for public use requires the evaluation of raw water and coagulant efficacy. The purpose of water treatment is to remove impurities, allowing its quality to be classified to meet the needs of the population. The conditions of urban rivers that flow though the city of Sao Paulo, which were already undergoing major transformations, particularly due to intense urbanization, have deteriorated further due to the precariousness of basic sanitation and increasing environmental pollution. This study focused on an analysis of the efficiency of PG alpha 21Ca, a water purification product, in the treatment of Pinheiros River water, based on coagulation-flocculation and sedimentation tests. The biopolymer PG alpha 21Ca reduced in the order of 100% the total phosphorus. The best sedimentation velocity for the coagulant under study was 1 cm min(-1). The PG alpha 21Ca performed well in the removal of turbidity and apparent color, with residual turbidity of 1.84 NTU, 96.95% removal of apparent color, and little change in the pH of the medium. (AU)

FAPESP's process: 15/02650-8 - Production and environmental application of y-polyglutamic acid by cultivation of B. subtilis in soy substrate
Grantee:Valquiria de Campos
Support Opportunities: Regular Research Grants