Waste hazard properties HP 4 ‘Irritant’ and HP 8 ‘Corrosive’ by pH, acid/base buffer capacity and acid/base concentration
نویسندگان
چکیده
European "Technical Recommendations" have proposed, in addition to the use of substance concentrations, a pH (≤ 2 or ≥ 11.5) and an acid / base buffering capacity classify waste into according their hazardous properties HP 4 'Irritant' 8 'Corrosive'. Buffer refers 2018 UK classification guide referring 'corrosive' level method proposed 1988 for substances preparations but not retained EU regulations. The different methods classifying products wastes terms corrosivity irritation are compared. using is expressed as concentration compared product (CLP). “corrosive” corresponds average 14.4Ͽie 14 times less severe than CLP (acid 1Ͽ These were applied five alkaline (pH 11.5). Minimum classified by both methods, three higher methods. Intermediate method. In order innovate create new divergence between waste, it seems preferable regulations 8. Fortunately, elimination danger from acidic can be obtained neutralization (possibly other wastes), including (natural) carbonation atmospheric CO2.
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ژورنال
عنوان ژورنال: Detritus
سال: 2021
ISSN: ['2611-4127', '2611-4135']
DOI: https://doi.org/10.31025/2611-4135/2021.15120