Comparison of dissolved air flotation and sedimentation for the treatment of two waters with low turbidity in Colombia

被引：1

作者：

Gonzalez-Galvis, Juan Pablo ^{[1
]}

Londono, Angela Maria Jaramillo ^{[2
]}

Amaya, Ruben Dario Sepulveda ^{[1
]}

机构：

[1] Univ Santo Tomas, Fac Civil Engn, Tunja 150001, Colombia

[2] Univ Santo Tomas, Fac Environm Engn, Bogota 110231, Colombia

来源：

WATER PRACTICE AND TECHNOLOGY | 2024年 / 19卷 / 06期

关键词：

apparent color; dissolved air flotation; natural organic matter; sedimentation; turbidity; NATURAL ORGANIC-MATTER; ENHANCED COAGULATION; REMOVAL; ULTRAFILTRATION; DAF;

D O I：

10.2166/wpt.2024.150

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

The main objective of this research was to conduct a comparative study between dissolved air flotation (DAF) and conventional sedimentation (SED) for the treatment of a reservoir water (REW) and small stream water (STW) with low turbidity and low alkalinity in Colombia at the bench-scale level. The experiments were conducted at the bench-scale using a jar test apparatus. Aluminum sulfate was used as the coagulant. The experimental results showed that with an optimum coagulant dose of 30 mg/L as alum to treat REW and 10 mg/L as alum to treat STW; the percentage turbidity removal by DAF and SED were 88-85% and 84-86%; apparent color removal were 65-62% and 87%; and UV-254 nm removal as a surrogate measurement for the concentration of NOM were 74-73% and 64-69%, respectively.

引用

页码：2460 / 2472

页数：13

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