Influence of climatic and hydrodynamic factors on the quarry water purification process from nitrogen compoundsAlexander Khokhryakov, Gennady Studenok, Andrey Studenok, Alexander Olkhovsky and Vladimir BoltyrovE3S Web Conf., 177 (2020) 04008DOI: https://doi.org/10.1051/e3sconf/202017704008