scholarly journals PHYSICAL AND CHEMICAL CHARACTERIZATION OF INDUSTRIAL EFFLUENTS OF SORVETES AFTER APPLICATION OF FLOCULANTES

2018 ◽  
Vol 15 (29) ◽  
pp. 276-281
Author(s):  
M. L. NIELAND ◽  
M. C. DALLAZEN ◽  
A. UEBEL ◽  
M. P. MÜLLER ◽  
M. COLLING ◽  
...  
Keyword(s):  
Oxygen Demand ◽  
Chemical Characterization ◽  
Industrial Effluents ◽  
Organic Load ◽  
Environmental Standards ◽  
Rio Grande Do Sul ◽  
Physical And Chemical Characterization ◽  
To Come ◽  
Physical And Chemical

The dairy industry plays a major role both economically and socially in Brazil. However, it generates a significant volume of effluent that presents high organic load. Because of this, a proper treatment is required for the generated effluent, trying to minimize the environmental impacts of its disposal. One of the alternatives to make these wastes in accordance to the environmental standards is the use of flocculants and coagulants that are capable of neutralizing the negative charges, causing the particles to come together to facilitate the separation process. This study aims to analyze the efficiency of flocculants for the treatment of effluent from a dairy company located in the central region of the state of Rio Grande do Sul, in the Taquari Valley. The flocculants used were Aquafloc and Aquaflot. For this, the parameters of Oils and Greases, Sedimentable Solids and Chemical Oxygen Demand (COD) were tested. Similar results were obtanied with both flocculants. However, from the analyzed parameters, Aquafloc proved to be more efficient for removal of COD.

scholarly journals Physical and Chemical Characterization of an Oyster Hemagglutinin

1969 ◽  
Vol 244 (15) ◽  
pp. 4128-4135
Author(s):  
R T Acton ◽  
J C Bennett ◽  
E E Evans ◽  
R E Schrohenloher
Keyword(s):  
Chemical Characterization ◽  
Physical And Chemical Characterization ◽  
Physical And Chemical

Physical and Chemical Characterization of Asphalt (Bitumen) Paving Exposures

2007 ◽  
Vol 4 (sup1) ◽  
pp. 209-216 ◽  
Author(s):  
Robert F. Herrick ◽  
Michael D. McClean ◽  
John D. Meeker ◽  
Leonard Zwack ◽  
Kevin Hanley
Keyword(s):  
Chemical Characterization ◽  
Physical And Chemical Characterization ◽  
Physical And Chemical

scholarly journals Physical and chemical characterization of composite flour from canna flour (Canna edulis) and lima bean flour (Phaseolus lunatus)

2018 ◽  
Author(s):  
Danar Praseptiangga ◽  
Anisha Ayuning Tryas ◽  
Dian Rachmawanti Affandi ◽  
Windi Atmaka ◽  
Achmad Ridwan Ariyantoro ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Lima Bean ◽  
Phaseolus Lunatus ◽  
Composite Flour ◽  
Physical And Chemical Characterization ◽  
Bean Flour ◽  
Physical And Chemical

scholarly journals Mechanical properties of mortar produced with the replacement of natural sand by scheelite residue

Cerâmica ◽  
2019 ◽  
Vol 65 (375) ◽  
pp. 443-451 ◽  
Author(s):  
B. A. Medeiros ◽  
G. A. Neves ◽  
N. P. Barbosa ◽  
R. R. Menezes ◽  
H. C. Ferreira
Keyword(s):  
Mechanical Properties ◽  
Chemical Characterization ◽  
Mechanical Tests ◽  
Cement Type ◽  
Natural Sand ◽  
Physical And Chemical Characterization ◽  
Water Absorption Test ◽  
Treatment And Disposal ◽  
Physical And Chemical

Abstract The residue generated by industrial activities represents a cost, since the generators are responsible for its management, transportation, treatment and disposal. Rio Grande do Norte State in Brazil is the greatest producer of scheelite residue. The aim of this research was to characterize this mining residue, identify its similarity with natural sand and produce a coating mortar with it. In the composition of mortar, a Brazilian Portland cement type CPII-F32 and an industrialized calcium hydroxide as a binder were used. Laser granulometry, bulk and relative density, EDX, XRD and thermal analysis were done to obtain a physical and chemical characterization of the residue. Mechanical tests (tensile bond strength and compressive strength), SEM and water absorption test were done to analyze the behavior of mortar. All tests confirmed that mechanical properties were according to standards for tile mortar.

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