Water Toxicity Monitoring Applications in Australasia

  • Waste water respirometry solutions for toxicity based consents

    Water companies, water authorities or publicly-owned treatment works (POTW) need to have some knowledge of the composition of the wastes they it receive. In addition to testing for ammonia and BOD or COD levels, treatment works can license industrial discharges on the basis of concentrations of some of the known toxic compounds. However, it is recognised that very many non-regulated toxic materials still enter the treatment works and reduce the efficiency of biodegradation, and may cause toxic shock. The way is...

    By Strathkelvin Instruments Ltd. Distributor in PO Box 1150, AUSTRALIA.

  • Waste water respirometry solutions for toxicity reduction tests

    In industrial manufacturing companies, before a new process comes on-line, it is important to measure the toxicity of the effluent stream. This is especially the case for companies who treat their own waste. From the toxicity value (EC50) obtained, it may be a cost-effective solution to simply discharge the effluent to the treatment works at a slow and defined rate to minimise damage to the activated sludge. Following a period of acclimatisation it is often possible to increase feed rates to the plant and this...

    By Strathkelvin Instruments Ltd. Distributor in PO Box 1150, AUSTRALIA.

  • Waste water respirometry solutions for toxicity tracking

    If toxicity is identified in a mixed sewage entering a treatment works, the problem for the plant manager is to track and identify the source of the toxicity. This can be done by sampling the effluent stream at various points in its length. By working in a logical sequence back up the sewer network the number of samples can be minimised. This type of testing should be rigorously enforced for new product introduction by a waste producer, as well as sampling the effluents directly at source. The samples would be...

    By Strathkelvin Instruments Ltd. Distributor in PO Box 1150, AUSTRALIA.

  • Environmental monitoring solution for mining industry

    Control of fugitive dust in the mining industry and in particular open cut operations is of great concern to the local community, environmental protection authorities and of course the mine operators. Dust emissions can cause both nuisance effects as well as health effects and so mines typically employ multiple dust suppression activities to minimise their environmental impact. Many of these activities can be expensive to operate and depending on environmental conditions, at the time, may not actually be effective...

    By Ecotech Pty Ltd based in Knoxfield, AUSTRALIA.

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