{"id":7730,"date":"2019-06-18T10:37:27","date_gmt":"2019-06-18T08:37:27","guid":{"rendered":"https:\/\/www.envigeo.eu\/contaminated-water-treatment-plant\/"},"modified":"2025-07-21T11:40:37","modified_gmt":"2025-07-21T09:40:37","slug":"contaminated-water-treatment-plant","status":"publish","type":"page","link":"https:\/\/envigeo.eu\/en\/contaminated-water-treatment-plant\/","title":{"rendered":"Contaminated Water Treatment Plant"},"content":{"rendered":"

[vc_row disable_element=”yes” rt_row_background_width=”fullwidth” rt_row_content_width=”default” rt_row_style=”default-style” rt_row_height=”” rt_column_gaps=”” rt_row_shadows=”” rt_row_borders=”” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_layer=”” rt_bg_video_format=”self-hosted” rt_class=”rt-6946055″ rt_paddings=”,,,” rt_margins=”,,,” rt_content_margins=”,,,” rt_tablet_paddings=”0,0,,” rt_tablet_margins=”,,,” rt_tablet_content_margins=”,,,” rt_sp_paddings=”0,0,,” rt_sp_margins=”,,,” rt_sp_content_margins=”,,,”][vc_column rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_empty_space height=”1px”][\/vc_column][\/vc_row][vc_row rt_row_background_width=”fullwidth” rt_row_content_width=”default” rt_row_style=”default-style” rt_row_height=”” rt_column_gaps=”” rt_row_shadows=”” rt_row_borders=”” rt_bg_effect=”classic” rt_bg_image_repeat=”no-repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_layer=”” rt_bg_video_format=”self-hosted” rt_class=”rt-2057662″ rt_paddings=”,,,” rt_margins=”,,,” rt_content_margins=”,,,” rt_tablet_paddings=”,,,” rt_tablet_margins=”,,,” rt_tablet_content_margins=”,,,” rt_sp_paddings=”,,,” rt_sp_margins=”,,,” rt_sp_content_margins=”,,,” rt_bg_image=”6982″][vc_column rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_empty_space height=”160px”][vc_custom_heading text=”Other services” font_container=”tag:h3|text_align:left|color:%23ffffff” use_theme_fonts=”yes”][\/vc_column][\/vc_row][vc_row rt_row_background_width=”fullwidth” rt_row_content_width=”default” rt_row_style=”default-style” rt_row_height=”” rt_column_gaps=”” rt_row_shadows=”” rt_row_borders=”” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_layer=”” rt_bg_video_format=”self-hosted”][vc_column rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_column_text]<\/p>\n

CONTAMINATED WATER TREATMENT PLANT VAJSKOV\u00c1<\/h3>\n

In\u00a0connection with\u00a0accidental pollution of\u00a0the\u00a0rock environment, groundwater and\u00a0surface water in\u00a0the\u00a0area of\u00a0the\u00a0former antimony smelter in\u00a0Vajskov\u00e1 (cadastral area Podbrezov\u00e1), a\u00a0series of\u00a0reconnaissance and\u00a0remediation work was carried\u00a0out for\u00a0our company Rudn\u00e9\u00a0bane,\u00a0SOE. As part of\u00a0the\u00a0remediation work, a\u00a0heap of\u00a0metallurgical waste was reclaimed and\u00a0a\u00a0contaminated water treatment plant\u00a0(CWTP) was built, which cleans the\u00a0seepage water of\u00a0the\u00a0covered landfill of\u00a0hazardous waste (heap of\u00a0metallurgical waste) pumped from\u00a0the\u00a0drain.<\/p>\n

The\u00a0dominant contaminant of\u00a0the\u00a0seepage water is arsenic\u00a0(As), the\u00a0accompanying contaminant is antimony\u00a0(Sb).<\/p>\n

Contaminated seepage water is cleaned by\u00a0precipitation. Ferric chloride and\u00a0sodium hydroxide are used as coagulants. After\u00a0addition of\u00a0coagulants and\u00a0flocculant, the\u00a0resulting sludge is separated in\u00a0a\u00a0lamella sedimentation tank. The\u00a0pre-treated water is filtered on\u00a0sand filters and\u00a0then discharged into\u00a0the\u00a0recipient – the\u00a0Vajskovsk\u00fd stream. The\u00a0sludge is dewatered in\u00a0the\u00a0filter press and\u00a0disposed of\u00a0as hazardous waste at\u00a0the\u00a0hazardous waste landfill.<\/p>\n

The\u00a0contaminated water treatment plant has been in\u00a0operation since\u00a0January\u00a02006. The\u00a0CWTP operation for\u00a0Rudn\u00e9\u00a0bane,\u00a0SOE, Bansk\u00e1\u00a0Bystrica is provided by\u00a0ENVIGEO. About\u00a017\u00a0ths.\u00a0m3<\/sup> of\u00a0contaminated water are cleaned annualy and\u00a0up\u00a0to\u00a03000-4500\u00a0kg of\u00a0arsenic and\u00a050-100\u00a0kg of\u00a0antimony separated from\u00a0the\u00a0polluted seepage water in\u00a0the\u00a0form of\u00a0dewatered sludge as hazardous waste are taken for\u00a0disposal.[\/vc_column_text][\/vc_column][\/vc_row][vc_row rt_row_background_width=”fullwidth” rt_row_content_width=”default” rt_row_style=”default-style” rt_row_height=”” rt_column_gaps=”” rt_row_shadows=”” rt_row_borders=”” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_layer=”” rt_bg_video_format=”self-hosted” rt_class=”rt-6037103″ rt_paddings=”,,,0″ rt_margins=”,,,” rt_content_margins=”,,,” rt_tablet_paddings=”,,,” rt_tablet_margins=”,,,” rt_tablet_content_margins=”,,,” rt_sp_paddings=”,,,” rt_sp_margins=”,,,” rt_sp_content_margins=”,,,”][vc_column width=”1\/2″ rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_gallery type=”image_grid” images=”7058,7059″][\/vc_column][vc_column width=”1\/2″ rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][\/vc_column][\/vc_row][vc_row rt_row_background_width=”fullwidth” rt_row_content_width=”default” rt_row_style=”default-style” rt_row_height=”” rt_column_gaps=”” rt_row_shadows=”” rt_row_borders=”” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_layer=”” rt_bg_video_format=”self-hosted” rt_class=”rt-7863029″ rt_paddings=”10,0,,” rt_margins=”,,,” rt_content_margins=”,,,” rt_tablet_paddings=”,,,” rt_tablet_margins=”,,,” rt_tablet_content_margins=”,,,” rt_sp_paddings=”,,,” rt_sp_margins=”,,,” rt_sp_content_margins=”,,,”][vc_column rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_separator style=”style-1″ rt_class=”rt-9194556″ margins=”,,,”][\/vc_column][\/vc_row][vc_row rt_row_background_width=”fullwidth” rt_row_content_width=”default” rt_row_style=”default-style” rt_row_height=”” rt_column_gaps=”” rt_row_shadows=”” rt_row_borders=”” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_layer=”” rt_bg_video_format=”self-hosted”][vc_column width=”1\/3″ rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”]

\n\t\t\t\t\t\t
Jaroslav SCHWARZ, M.A.<\/h5>\n\t\t\t\t\t<\/div>[vc_column_text]director of ENVIGEO Division<\/p>\n

tel.: +421 (48) 471 24 39
\n<\/span>fax: +421 (48) <\/span>471 24 23
\n<\/span>mobile: +421 902 959 313
\n<\/span>e-mail:\u00a0schwarz@envigeo.sk<\/a><\/span>[\/vc_column_text]

<\/span><\/div>
ENVIGEO DIVISION<\/h5> <\/div><\/article>[vc_empty_space][\/vc_column][vc_column width=”1\/3″ rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”]
\n\t\t\t\t\t\t
Pavol TUP\u00dd, M.A.<\/h5>\n\t\t\t\t\t<\/div>[vc_column_text]General Manager<\/p>\n

tel.: +421 (48) 471 24 37
\n<\/span>fax: +421 (48) <\/span>471 24 23
\n<\/span>mobile: +421 902 959 333
\n<\/span>e-mail:\u00a0tupy@envigeo.sk<\/a><\/span>[\/vc_column_text]

<\/span><\/div>
ENVIGEO DIVISION<\/h5> <\/div><\/article>[\/vc_column][vc_column width=”1\/3″ rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][\/vc_column][\/vc_row][vc_row rt_row_background_width=”fullwidth” rt_row_content_width=”default” rt_row_style=”default-style” rt_row_height=”” rt_column_gaps=”” rt_row_shadows=”” rt_row_borders=”” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_layer=”” rt_bg_video_format=”self-hosted”][vc_column rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_empty_space][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"

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