Environmental Parameters

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Lecta Environmental Parameters

Purchase of certified pulp

Purchase of certified pulp graphic
72% 2014
36% 2006

Lecta guarantees the sustainable origin of the wood it uses to manufacture its products and can document that this wood is sourced only from legal and non-controversial sources, all of which are certified or controlled. This is demonstrated by the completion of PEFC™ and FSC® Chain-of-Custody multisite certification for all its production.

In recent years, Lecta has significantly increased its purchase of certified pulp, with 72% in 2014 compared to 36% in 2006. The rest of the pulp comes from controlled sources approved by the relevant certifications.

In addition to having PEFC and FSC certifications, Lecta complies with the EU Timber Regulation (Regulation 995/2010), which prohibits the sale on the European market of timber or timber products from illegal logging.

CO2 Emissions

CO2 Emissions (t CO2/t)
CO2 Emissions graphic
0.34 2014
0.40 2006

The paper industry is one of the industries best positioned to mitigate climate change: the paper cycle begins with natural, renewable raw material (trees) that absorbs CO2 during its growth; stored carbon is not released when trees are cut but remains within the paper products themselves, true CO2 stores; paper can be recycled several times after use, thereby increasing carbon sequestration time; and even when it is not suitable for recycling, paper can be used as biofuel, as well as biomass, with the consequent reduction in landfill waste volumes and the resulting emissions.

All Lecta mills strictly monitor CO2 emissions and, since 2006, have reduced by more than 15% CO2 emissions per ton of paper as a result of a variety of energy-saving projects.

Energy consumption

Energy consumption (MWh/t)
Energy consumption graphic
2.27 2014
2.48 2006

Efficient and sustainable energy use is a priority for Lecta, which has reduced specific energy consumption by 9% since 2006.

The implementation of a certified energy management system in accordance with the ISO 50001 standards in all of the Group's mills involves an exhaustive analysis of different points in the manufacturing process where energy can be saved and the implementation of measures to optimize energy consumption. These measures resulted in the installation of more efficient equipment, which, along with increased employee awareness, have allowed for reducing energy consumption to below 2.3 MWh per ton.


Self-generated power
Self-generated power graphic
140% 2014
101% 2006

CHP (cogeneration) is an extremely efficient power generation system, given that it permits the simultaneous production of electricity and heat for industrial consumption, thereby saving primary energy and reducing greenhouse gas emissions while also increasing industrial competitiveness.

CHP also creates advantages for the community or territory where it is located, enhancing power supply and efficiency of energy transport while reducing its dependence on imported energy.

In order to improve energy efficiency and, consequently, reduce greenhouse gas emissions, Lecta's Zaragoza, Leitza, Motril, Sant Joan les Fonts, Condat and Cartiere del Garda mills have cogeneration plants, which consume natural gas, the cleanest and most efficient of the fossil fuels, one of which uses biomass as fuel, producing energy from renewable sources.

Water usage

Discharge water flow (m3/t)
Water usage graphic
11.29 2014
14.20 2006

Pulp and paper manufacturing processes require large amounts of water. Yet practically all the water used is returned to the environment: close to 95% is sent back to waterways of origin, and of the remaining 5%, one part is transformed into steam and released into the atmosphere while another part remains in the paper as moisture content.

All of Lecta's mills continuously analyze alternatives for reducing the amount of water needed to produce paper and pulp. In the 2006-2014 period, the flow rate of water was reduced by more than 20% thanks to improvements in the water recycling system process, the installation of new equipment and heightened awareness on the part of employees regarding the importance of efficient water management.

Water quality

TSS (kg/t)
Water quality graphic
0.17 2014
0.27 2006

The paper industry's main indicators for measuring the quality of the water returned to the environment are Chemical Oxygen Demand (COD), Total Suspended Solids (TSS) and Absorbable Organically Bound Halogens (AOX) generated by the use of chlorine during the pulp bleaching process.

DQO (kg/t)
DQO graphic
1.29 2014
1.80 2006

Lecta has reduced Chemical Oxygen Demand (COD) by 38% since 2012 and Total Suspended Solids (TSS) by 15% in the same period.

In 2014, Lecta's COD was 1.29 kg per ton, well beyond the commitment assumed in the Environmental Report to reduce COD to values below 2 kg/t.

The installation of a new biological wastewater treatment plant at the Zaragoza mill in 2014, as part of the environmental investment plan begun in 2011, along with the greater efficiency of the treatment processes of water disposal at other mills, has resulted in a significant improvement in the quality of effluents in the last two years.

Since 2001, 100% of the pulp manufactured by Lecta has been ECF (Elemental Chlorine Free). Eliminating chlorine gas in the pulp bleaching sequence eliminates the dioxins in effluents and drastically reduces the concentration of AOX (Absorbable Organically Bound Halogens), thus substantially improving the quality of discharged water. In 2014, Lecta's AOX emissions reached a value of 0.009 kg/t.

Dry Sludge (kg/t)

Dry Sludge graphic
9.01 2014
14.46 2006

Aware of the importance of reducing landfill volumes and the emissions they cause, Lecta has continued to implement measures to reduce and recover the solid waste produced during the paper manufacturing process.

In the last two years, Lecta has reduced the volume of dry sludge per ton produced by 12%, the result of an investment in more efficient drying systems and the recovery of wastewater and cyclonic treatment waste, which are subsequently reintroduced in the manufacturing process.

Sludge Recovery

Sludge Recovery graphic
95% 2014
42% 2006

In 2014, Lecta recovered 95% of the sludge generated during the production process, primarily for composting in agriculture, making use of waste that was previously sent to landfills.

Currently, 100% of the sludge generated during the manufacturing process at the Condat, Zaragoza, Motril and Leitza mills is recovered.