Environmental activities in 2016
One of the focus areas for environmental activities in 2016 has been energy generated from biofuels. Through a carefully considered operational strategy and active allocation of available biofuels, almost 98 per cent of total steam production derived from biofuels.
Fossil CO2 emissions are at a low level, but have increased in recent years. This is principally due to the supply of tar oil, which is a biogenic fuel, having been limited, forcing the mill to use more heating oil. During the year, the P11 oil-fired boiler was also run solely on EO3, to avoid the risk of increased dust emissions.
Iggesund Mill worked hard to reduce emissions to water in 2016, and emissions of suspended solids in particular have fallen to low levels following optimisations in chemical flotation.
The limit values for dust in the new Ordinance 2013:252 on large combustion plants were exceeded for the solid fuel boiler during the first half of the year. A considerable amount of work has been done on the boiler, including making improvements to the electric filter. As a result, emissions are now at a historically low level. Several energy-saving measures were decided upon during the year. The annual energy saving from these measures is estimated to be around 11 GWh.
Permits for operation
The company's operations (Iggesund Mill excluding Strömsbruk and Skärnäs Hamn) are subject to the Land and Environmental Court's decision of February 2013.
The coating and laminating plant at Strömsbruk has been classified as a 'C' plant with an obligation to notify its environmental activities to the authorities since 2007/2008.
Permits under the Environmental Code for the port operations at Skärnäs Terminal, Iggesund, were granted in 1999.
The company is covered by the rules on fossil carbon dioxide emissions trading. It holds a permit for carbon dioxide emissions and has been awarded emission allowances for the trading period 2013-2020.
In July, Iggesund Mill submitted an application for a new permit to increase production to 500 000 tonnes of pulp and 450 000 tonnes of paperboard. This permit also includes operations at Skärnäs Hamn.
Certified environmental and energy management systems
Iggesund Mill's environmental management system has been certified to ISO 14001 since 2001. The energy management system was certified in 2005, and this system was upgraded in line with ISO 50001 in 2011. The company also has both FSC® and PEFCTM certification for the wood raw material.
The production unit at Strömsbruk and Skärnäs Terminal are covered by all certifications.
Investments/environmental and energy measures
The production line for softwood sulphate pulp was upgraded in 2016, including the installation of new wash presses. These measures have led to a reduction in the order of 5–10 per cent in the hydraulic load on external wastewater treatment. The investment also signifies a saving in hot water and steam.
Measures in the electric filter in solid fuel boiler P12 were also implemented, and dust emissions from the boiler are now at historically low levels.
Disruptions to production and complaints
Iggesund Mill is focused at all times on designing out risks that could cause incidents with an environmental impact. In 2016, incidents requiring reporting to the supervisory authority occurred on 23 occasions. Most of the incidents concerned releases of untreated wastewater (7), leakage on the wastewater tube (5) and exceeding of limit values for dust under Ordinance 2013:252 on Large Combustion Plants (7).
Dust limits were reported to be exceeded, but no preliminary investigation was launched as the supervisory authority and the police considered the company to have taken the necessary action and no malicious intent could be established.
The conditions set in the Land and Environment Court ruling were fulfilled during the year, but the limit for susp. GF/A came close to being exceeded. 10 external complaints were received during the year. Two concerned odour, three concerned foam from external treatment and five concerned noise in connection with disruptions to production. The complainants were informed about the underlying causes and measures taken.
Follow-up of environmental and energy targets in 2016
The aim is constantly to reduce environmental impact, with the vision of creating an operation without fossil carbon dioxide emissions.
Iggesund Mill follows this up with four key indicators.
Biofuel-based steam production – target level 95 per cent
Back-pressure production – target level 25 GWh/month
Emissions to water TOC – target level 5.2 tonnes/day
Emissions to water of suspended solids – target level 2.6 tonnes/day
The target level for biofuel-based steam production was attained. The outcome was 97,8 per cent.
The target level for back-pressure production was met. The outcome was 29 GWh/month.
The target level for TOC was attained. The outcome was 4.6 tonnes/day.
The target level for suspended solids was not attained. The outcome was 4.6 tonnes/day.
Planned environmental and energy measures in 2017
Modified controller functions for reduced steam consumption on fibre lines.
Pre-project for dredging of the aerated basin.
Environmental and energy targets 2017
The aim is constantly to reduce environmental impact, with the vision of creating an operation without fossil carbon dioxide emissions. The target level for 2017 for the share of biofuels used for steam production should amount to 98.3 per cent.