Apa-Canal Chisinau (ACC) named the reasons for the unpleasant smell in Chisinau
The company’s press release said that the results of laboratory tests collected at the sewage inlet of the treatment plant showed that from July to August 2019, several business entities dumped waste with a high concentration of substances into the centralized sewer network, which are used in food industry enterprises (production of dairy, sausages, alcoholic beverages, sweets, etc.), as well as phosphates, which are used in car washes, dry cleaners, and chemical industry enterprises. These discharges had a devastating effect on bacteria and microorganisms that process wastewater from treatment plants and almost destroyed 90-95% of bacterial cultures. Thus, the wastewater entering the treatment plant is not properly treated, which creates the first source of unpleasant odor. In this regard, it was established that toxic substances were emitted into the centralized sewerage network with flagrant violation by economic agents of the mandatory requirements established by the law. At the same time, the ACC indicates that the company has limited authority to verify compliance by economic agents with legislation that obliges them to provide local wastewater treatment. The company believes that competent state bodies (Environmental Protection Agency, Environmental Protection Inspectorate, etc.), which are responsible for issuing authorizations for activities that have an impact on the environment, as well as for issuing permits, should more effectively fulfill their functions. At the same time, many enterprises that discharge wastewater into the municipal sewer network in violation of the standards, without providing preliminary treatment, act in concert against the ACC. In addition to the fact that these enterprises do not acknowledge the violations, they refuse to pay additional bills for exceeding the norm for the content of various substances in wastewater and sue the ACC. Another source of smell, according to ACC, is sludge that has been collected in the geotubes at the station over the last 10-12 years. However, geotubes do not provide effective processing of sludge; this is a temporary method of storage. After a certain time, sludge must be removed from there. During the summer heat, the fermentation process in geotubes intensified, which also led to the appearance of an unpleasant odor. Another factor exacerbating the problem is that the repair of the treatment plants was carried out poorly. Let us recall that from late August a pungent unpleasant odor persists in Chisinau. // 13.09.2019 - InfoMarket.