Lime

Description

VAV wants to enter into a framework agreement with one tenderer that shall cover all Bekkelaget sewage treatment plant’s needs for the purchase and delivery of hydrated lime. Bekkelaget sewage treatment plant is owned by Oslo kommune, but is operated by a private party, Bekkelaget Vann AS (BEVAS). BEVAS is a private operational company for water and sewage services. Bekkelaget sewage treatment plant receives and treats sewage water from Oslo’s eastern and southern districts. The treatment plant has mechanical, chemical and biological purification, as well as filtering before the sewage water is released at a depth of 50 metres in Oslofjord. BEVAS shall as needed, adjust the pH by adding hydrated lime to the sewage water. Hydrated limes is used to adjust alkalinity of the sewage water, improving of the sedimentation properties of bio-sludge as well as limited growth of microtrix in the biological cleansing stage. (for details — see Appendix 2 the Requirement Specification). VAV wants to enter into a framework agreement with one tenderer that shall cover all Bekkelaget sewage treatment plant’s needs for the purchase and delivery of hydrated lime. Bekkelaget sewage treatment plant is owned by Oslo kommune, but is operated by a private party, Bekkelaget Vann AS (BEVAS). BEVAS is a private operational company for water and sewage services. Bekkelaget sewage treatment plant receives and treats sewage water from Oslo’s eastern and southern districts. The treatment plant has mechanical, chemical and biological purification, as well as filtering before the sewage water is released at a depth of 50 metres in Oslofjord. BEVAS shall as needed, adjust the pH by adding hydrated lime to the sewage water. Hydrated limes is used to adjust alkalinity of the sewage water, improving of the sedimentation properties of bio-sludge as well as limited growth of microtrix in the biological cleansing stage.