{"id":19166,"date":"2026-10-19T16:50:33","date_gmt":"2026-10-19T14:50:33","guid":{"rendered":"https:\/\/www.sebigas.it\/?page_id=19166"},"modified":"2026-10-19T16:50:33","modified_gmt":"2026-10-19T14:50:33","slug":"biogas-plant-sludge","status":"publish","type":"page","link":"https:\/\/www.sebigas.it\/en\/applications\/biogas-plant-sludge\/","title":{"rendered":"Sludge plants"},"content":{"rendered":"

[et_pb_section fb_built=”1″ admin_label=”Header” _builder_version=”4.7.4″ _module_preset=”default” background_color=”#d6d6d6″ background_image=”https:\/\/www.sebigas.it\/wp-content\/uploads\/2023\/10\/Sebigas-impianti-fanghi.jpg” parallax=”on” custom_margin=”0px||0px||false|false” custom_padding=”270px||0px||false|false” da_disable_devices=”off|off|off” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_row _builder_version=”4.7.4″ _module_preset=”default” background_color=”rgba(10,10,10,0.5)” custom_padding=”20px|20px|20px|20px|false|false” border_color_right=”#E09900″ border_color_left=”#E09900″][et_pb_column type=”4_4″ _builder_version=”4.7.4″ _module_preset=”default” custom_padding=”10px|||20px|false|false” border_width_left=”7px” border_color_left=”#F39606″][et_pb_post_title meta=”off” featured_image=”off” text_color=”light” admin_label=”Titolo del Post” _builder_version=”4.7.4″ _module_preset=”default” title_font=”|700|||||||” title_font_size=”28px” background_enable_color=”off” custom_margin=”0px||0px||false|false”][\/et_pb_post_title][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Testi” module_class=”pl” _builder_version=”4.7.4″ _module_preset=”default” background_color=”#FFFFFF” background_enable_image=”off” custom_padding=”||||false|false” da_disable_devices=”off|off|off” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_row column_structure=”1_2,1_2″ make_equal=”on” admin_label=”Agricultural biogas plant” _builder_version=”4.7.4″ _module_preset=”default” module_alignment=”center” custom_margin=”||||false|false” custom_padding=”||||false|false”][et_pb_column type=”1_2″ admin_label=”Column” _builder_version=”4.7.4″ _module_preset=”default” custom_padding=”||||false|false”][et_pb_text _builder_version=”4.7.4″ _module_preset=”default”]<\/p>\n

Biogas plants for sewage sludge<\/h2>\n

[\/et_pb_text][et_pb_text _builder_version=”4.7.4″ _module_preset=”default” text_font=”||||||||” text_text_color=”#333333″ custom_margin=”||||false|false” custom_padding=”||||false|false”]<\/p>\n

Biogas plants for sewage sludge<\/strong> provide a sustainable technological solution for valorising municipal and industrial sludge, reducing its volume, disposal costs and environmental impact.<\/p>\n

We design high-efficiency plants<\/strong> for sewage sludge treatment that can be integrated with existing wastewater treatment facilities, converting waste into renewable energy<\/strong> and creating a tangible circular-economy opportunity.<\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ admin_label=”Column” _builder_version=”4.7.4″ _module_preset=”default” background_color=”#F9D2CE” custom_padding=”30px|30px|30px|30px|false|false”][et_pb_text _builder_version=”4.7.4″ _module_preset=”default” text_text_color=”#000000″ text_font_size=”20px” custom_margin=”||7px||false|false”]<\/p>\n

Sludge types that can be treated:<\/strong><\/p>\n

[\/et_pb_text][et_pb_blurb title=”Industrial sludge” image=”https:\/\/www.sebigas.it\/wp-content\/uploads\/2026\/08\/Icone_biomasse-07.webp” icon_placement=”left” _builder_version=”4.7.4″ _module_preset=”default” header_font=”||||||||” custom_margin=”0px||0px||false|false” custom_padding=”10px||10px||false|false” border_color_all=”#666666″ border_width_bottom=”1px” locked=”off” title__hover_enabled=”on|desktop”]<\/p>\n

From food-processing companies (meat, fish, dairy, beverages, breweries and confectionery), paper mills and the textile industry<\/span><\/p>\n

[\/et_pb_blurb][et_pb_blurb title=”Municipal sludge” image=”https:\/\/www.sebigas.it\/wp-content\/uploads\/2026\/08\/Icone_biomasse-municipali.webp” icon_placement=”left” _builder_version=”4.7.4″ _module_preset=”default” header_font=”||||||||” custom_margin=”0px||0px||false|false” custom_padding=”10px||10px||false|false” border_color_all=”#666666″ border_width_bottom=”1px” locked=”off” title__hover_enabled=”on|desktop”]<\/p>\n

From municipal wastewater treatment plants<\/span><\/p>\n

[\/et_pb_blurb][\/et_pb_column][\/et_pb_row][et_pb_row admin_label=”CTA” _builder_version=”4.7.4″ _module_preset=”default”][et_pb_column type=”4_4″ _builder_version=”4.7.4″ _module_preset=”default”][et_pb_cta title=”Turn your waste into an energy resource” button_url=”#contact_form” button_text=”Talk to our engineers” admin_label=”Call-To-Action” _builder_version=”4.7.4″ _module_preset=”default” header_text_color=”#FFFFFF” header_font_size=”22px” body_font_size=”18px” background_color=”#ec3322″ custom_button=”on” button_text_size=”16px” button_text_color=”#FFFFFF” custom_padding=”20px||20px||false|false” border_color_all=”#000000″ button_border_width__hover_enabled=”on|hover” button_border_width__hover=”2px” button_border_color__hover_enabled=”on|hover” button_border_color__hover=”#FFFFFF” button_text_color__hover=”#FFFFFF” button_text_color__hover_enabled=”on|hover” use_background_color__hover=”on” background__hover_enabled=”off|hover” min_height__hover_enabled=”off|desktop”][\/et_pb_cta][\/et_pb_column][\/et_pb_row][et_pb_row make_equal=”on” admin_label=”Biogas plants” _builder_version=”4.7.4″ _module_preset=”default” module_alignment=”center” custom_margin=”||||false|false” custom_padding=”||||false|false”][et_pb_column type=”4_4″ admin_label=”Column” _builder_version=”4.7.4″ _module_preset=”default” custom_padding=”||||false|false”][et_pb_text _builder_version=”4.7.4″ _module_preset=”default”]<\/p>\n

How a sewage sludge biogas plant works<\/h2>\n

[\/et_pb_text][et_pb_text _builder_version=”4.7.4″ _module_preset=”default” text_font=”||||||||” text_text_color=”#333333″ custom_margin=”||||false|false” custom_padding=”||||false|false”]<\/p>\n

At the core of the plant is the CSTR reactor<\/strong>, where sewage sludge undergoes anaerobic digestion to produce biogas.<\/p>\n

The process includes four stages:<\/p>\n

    \n
  • Thickening<\/strong>: reduces sludge volume by increasing the dry solids content<\/li>\n
  • Anaerobic digestion (CSTR)<\/strong>: degrades organic content in the absence of oxygen, producing biogas and stabilising the sludge<\/li>\n
  • Dewatering<\/strong>: removes water to achieve a dry solids content of up to 22%, using technologies such as centrifuges, filter presses or belt presses<\/li>\n
  • Drying<\/strong>: further reduces the moisture content using thermal energy.<\/li>\n<\/ul>\n

    Sludge types suitable for anaerobic digestion include:<\/p>\n

      \n
    • Primary sludge<\/strong>: generated during primary sedimentation and characterised by a high biogas yield (300\u2013400 Nm\u00b3\/tODS)<\/li>\n
    • Secondary sludge<\/strong>: generated by aerobic treatment processes and characterised by a lower methane potential (200\u2013300 Nm\u00b3\/tODS), while remaining suitable for co-digestion.<\/li>\n<\/ul>\n

      [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ make_equal=”on” admin_label=”Benefits” _builder_version=”4.7.4″ _module_preset=”default” module_alignment=”center” custom_margin=”||||false|false” custom_padding=”||||false|false”][et_pb_column type=”1_2″ _builder_version=”4.7.4″ _module_preset=”default” background_image=”https:\/\/www.sebigas.it\/wp-content\/uploads\/2026\/07\/pag.-33.jpg” custom_padding=”||||false|false”][\/et_pb_column][et_pb_column type=”1_2″ admin_label=”Column” _builder_version=”4.7.4″ _module_preset=”default” custom_padding=”||||false|false”][et_pb_text _builder_version=”4.7.4″ _module_preset=”default”]<\/p>\n

      Environmental benefits of a sewage sludge biogas plant<\/h2>\n

      [\/et_pb_text][et_pb_text _builder_version=”4.7.4″ _module_preset=”default” text_font=”||||||||” text_text_color=”#333333″ custom_margin=”||||false|false” custom_padding=”||||false|false”]<\/p>\n

      Integrating an anaerobic digester into a sludge treatment system makes enables to:<\/p>\n

        \n
      • Generate renewable energy for on-site use or sale<\/strong><\/li>\n
      • Reduce dependence on fossil fuels<\/strong> and the associated costs<\/li>\n
      • Cut sludge disposal costs<\/strong><\/li>\n
      • Improve sludge stabilisation<\/strong> and reduce odour emissions<\/li>\n
      • Reduce the bacterial load and the final sludge volume<\/strong><\/li>\n<\/ul>\n

        A sewage sludge biogas plant enables companies to turn waste into a resource while reducing operating costs.<\/p>\n

        [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row make_equal=”on” admin_label=”Advantages” _builder_version=”4.7.4″ _module_preset=”default” module_alignment=”center” custom_margin=”||||false|false” custom_padding=”||||false|false”][et_pb_column type=”4_4″ admin_label=”Column” _builder_version=”4.7.4″ _module_preset=”default” custom_padding=”||||false|false”][et_pb_text _builder_version=”4.7.4″ _module_preset=”default”]<\/p>\n

        Economic benefits of a sewage sludge biogas plant<\/h2>\n

        [\/et_pb_text][et_pb_text admin_label=”Testo” _builder_version=”4.7.4″ _module_preset=”default” text_font=”||||||||” text_text_color=”#333333″ custom_margin=”||||false|false” custom_padding=”||||false|false”]<\/p>\n

        An anaerobic digestion plant can be readily integrated with existing wastewater treatment facilities<\/strong> and does not require major structural works<\/strong>.<\/p>\n

        We provide modular, scalable solutions designed to:<\/p>\n

          \n
        • Reduce wastewater treatment plant operating costs<\/li>\n
        • Optimise the management of primary and secondary sludge<\/li>\n
        • Maximise renewable energy production<\/li>\n
        • Simplify long-term sludge management<\/li>\n<\/ul>\n

          [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row admin_label=”CTA” _builder_version=”4.7.4″ _module_preset=”default”][et_pb_column type=”4_4″ _builder_version=”4.7.4″ _module_preset=”default”][et_pb_cta title=”Do you operate a wastewater treatment plant and want to reduce sludge management costs?” button_url=”#contact_form” button_text=”Contact us for a tailor-made consultation” _builder_version=”4.7.4″ _module_preset=”default” header_text_color=”#FFFFFF” header_font_size=”22px” body_font_size=”18px” background_color=”#ec3322″ custom_button=”on” button_text_size=”16px” button_text_color=”#FFFFFF” custom_padding=”20px||20px||false|false” border_color_all=”#000000″ button_border_width__hover_enabled=”on|hover” button_border_width__hover=”2px” button_border_color__hover_enabled=”on|hover” button_border_color__hover=”#FFFFFF” button_text_color__hover_enabled=”on|hover” button_text_color__hover=”#FFFFFF” background__hover_enabled=”off|desktop” use_background_color__hover=”on”][\/et_pb_cta][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Parallax 1″ _builder_version=”4.7.4″ _module_preset=”default” background_image=”https:\/\/www.sebigas.it\/wp-content\/uploads\/2023\/10\/cstr-reattore.jpg” parallax=”on” parallax_method=”off” min_height=”400px” da_disable_devices=”off|off|off” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_row module_id=”contact_form” _builder_version=”4.7.4″ _module_preset=”default” global_module=”18404″][et_pb_column type=”4_4″ _builder_version=”4.7.4″ _module_preset=”default” background_color=”#48af66″ custom_padding=”40px|40px|40px|40px|false|false”][et_pb_text admin_label=”Testo” _builder_version=”4.7.4″ _module_preset=”default” text_text_color=”#FFFFFF” custom_css_main_element=”h2{color:#fff;}”]<\/p>\n

          Get More Information<\/h2>\n

          Submit your request and we will get back to you by email or phone as soon as possible.[\/et_pb_text][et_pb_contact_form use_spam_service=”on” recaptcha_list=”creative-farm-0″ email=”web@creative-farm.it” success_message=”Your request has been submitted successfully. 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          [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"

          [et_pb_section fb_built=”1″ admin_label=”Header” _builder_version=”4.7.4″ _module_preset=”default” background_color=”#d6d6d6″ background_image=”https:\/\/www.sebigas.it\/wp-content\/uploads\/2023\/10\/Sebigas-impianti-fanghi.jpg” parallax=”on” custom_margin=”0px||0px||false|false” custom_padding=”270px||0px||false|false” da_disable_devices=”off|off|off” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_row _builder_version=”4.7.4″ _module_preset=”default” background_color=”rgba(10,10,10,0.5)” custom_padding=”20px|20px|20px|20px|false|false” border_color_right=”#E09900″ border_color_left=”#E09900″][et_pb_column type=”4_4″ _builder_version=”4.7.4″ _module_preset=”default” custom_padding=”10px|||20px|false|false” border_width_left=”7px” border_color_left=”#F39606″][et_pb_post_title meta=”off” featured_image=”off” text_color=”light” 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