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Standard Practice for the Prediction of Contaminant Adsorption On GAC In Aqueous Systems Using Rapid Small-Scale Column Tests
Automaticky preložený názov:
Štandardná prax pre predikciu kontaminanty Adsorpcia na GAC vo vodných systémoch Použitie Rapid v malom meradle stĺpcov testy
NORMA vydaná dňa 1.7.2014
Označenie normy: ASTM D6586-03(2014)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.7.2014
Kód tovaru: NS-35744
Počet strán: 6
Približná hmotnosť: 18 g (0.04 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
activated carbon, column testing, granular activated carbon, RSSCT, ICS Number Code 71.040.30 (Chemical reagents),71.100.80 (Chemicals for purification of water)
Significance and Use | ||||||||||||
5.1 Granular activated carbon (GAC) is commonly used to remove contaminants from water. However if not used properly, GAC can not only be expensive but can at times be ineffective. The development of engineering data for the design of full-scale adsorbers often requires time-consuming and expensive pilot plant studies. This rapid standard practice has been developed to predict adsorption in large-scale adsorbers based upon results from small column testing. In contrast to pilot plant studies, the small-scale column test presented in this practice does not allow for a running evaluation of factors that may affect GAC performance over time. Such factors may include, for example, an increased removal of target compounds by bacterial colonizing GAC5.2 This practice known as the rapid small-scale column test (RSSCT) uses empty bed contact time (EBCT) and hydraulic loading to describe the adsorption process. Mean carbon particle diameter is used to scale RSSCT results to predict the performance of a full-scale adsorber. 5.3 This practice can be used to compare the effectiveness of different activated carbons for the removal of contaminants from a common water stream. |
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1. Scope | ||||||||||||
1.1 This practice covers a test method for the evaluation of granular activated carbon (GAC) for the adsorption of soluble pollutants from water. This practice can be used to estimate the operating capacities of virgin and reactivated granular activated carbons. The results obtained from the small-scale column testing can be used to predict the adsorption of target compounds on GAC in a large column or full scale adsorber application. 1.2 This practice can be applied to all types of water including synthetically contaminated water (prepared by spiking high purity water with selected contaminants), potable waters, industrial waste waters, sanitary wastes and effluent waters. 1.3 This practice is useful for the determination of breakthrough curves for specific contaminants in water, the determination of the lengths of the adsorbates mass transfer zones (MTZ) and the prediction of GAC usage rates for larger scale adsorbers. 1.4 The following safety caveat applies to the procedure section, Section 10, of this practice: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||||||
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1.4.2007
1.6.2014
NEPLATNÁ
1.1.2002
NEPLATNÁ
1.2.2002
NEPLATNÁ
1.7.2003
NEPLATNÁ
1.7.2003
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