(Adsorbable organic halogen compounds) Collective term for the amount of chlorine bound to organic pollutants, in waste water for example.
Absorbable Organic Halogens. This is the most common measure of the mass of available organic halogens (in this case organochlorines) in a particular medium. See EOX.
Adsorbable Organic Halogens is a measurement often used in waste water testing to indicate the overall level of the halogens, fluorine, chlorine, bromine and iodine. This "sum parameter" comes from a standard analytical procedure, which gives no information on the source or nature of halogens present nor on their toxicity. It has the advantage of being simple to measure; alternative methods of measuring levels of individual compounds are complex and require costly equipment.
Adsorbable Organic Halogens. Collective term for the halogen compounds (chlorine, fluorine, bromine and iodine) bound to organic substances, for example in waste water from the mill. The compounds arise when bleaching with chlorine-containing chemicals although they can also occur naturally and are potentially detrimental to water quality. The lower the AOX level the better.
adt: Absorbable Organic Halogen per average daily ton of pulp produced. Halogens are a family of elements chlorine, fluorine and bromine which have similar physical structures and behave similarly when they make compounds (eg. they are all ozone depleting substances). AOX is determined by absorbing organochlorines present in the sample on activated charcoal, which is then burnt and analysed for chlorine content.
Adsorbable Organo Halogens A = Active carbon (charcoal) is a method of measuring the amount of air escaping between an annular ring and the material surface. The results are expressed in millilitres per minute (ml/min). The rougher the surface, the greater the loss of air thereby producing a higher reading. A smoother print finish with a greater degree of dot sharpness can be achieved on material which has a smooth surface.
Absorbable organic halogens. This is a method for the measurement of chlorinated, brominated, jodinated and/or fluorinated organic material in water. For that purpose, waste or river water is conducted trough active carbon. The active carbon absorbs organic material and is incinerated afterwards. The amount of chlorine, bromine, jodine and/or fluorine is then measured. The AOX just tells about amounts, not about toxicity. Even in rivers far from any pollution a relatively high AOX is measured, as natural chlorinated phenolics and humic acids are formed by wood rotting fungi.
Adsorbable Organic Halogens. This is the result of a standard analytical procedure for the determination of the sum of the halogens chlorine, bromine and iodine. The AOX value is expressed in equivalent chlorine and is sometimes called a "group parameter" or "sum parameter". It gives no information on the nature of the halogen compounds present in the sample. See also "TOX"
Adsorbable organic halogens. Total concentration of chlorine bound to organic compounds in waste water. AOX measures all chlorine compounds both harmful and harmless (a sum parameter)
Absorbable Organic Halogens. AOX defines the amount of organic chlorine compounds contained in effluent produced during the bleaching of pulp by the reaction of chlorine chemicals with the residual lignin in the wood fibre.
(Adsorbable organic halogens) indicates total concentration of chlorine bound to organic compounds in waste water.
Adsorbable organic halogen compounds. A collective term for the amount of chlorine or other halogens bound to organic matter in waste water.
adsorbable organic halides
Adsorbable organic halogens. AOX is a measure of total concentration of all halogens bound to organic compounds in waste water. AOX measures all chlorine, bromine, iodine and fluorine compounds both harmful and harmless although it is usually associated with chlorine compounds.
Absorbable organic halogens. Collective term for the quantity of chlorine bound in organic compounds. It is formed during bleaching of pulp with chlorinated chemicals, but is also formed naturally.