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Black liquor

In industrial chemistry, black liquor is the waste product from the kraft process when digesting pulpwood into paper pulp removing lignin, hemicelluloses and other extractives from the wood to free the cellulose fibers.The equivalent material in the sulfite process is usually called brown liquor, but the terms red liquor, thick liquor and sulfite liquor are also used.

Black liquor

  • Viresco Solutions

    Type: 
    Organisation
    Knowledge partner
    Country of registration:
    Canada
    Relation to CTCN:
    Network Member
    Knowledge Partner

    Viresco Solutions is a consulting firm based in Calgary, Alberta, Canada. Its core business is greenhouse gas offset policy development and implementation, greenhouse gas emissions quantification, sustainable supply chain development, environmental offset methodology development, and providing technical assistance to others undertaking carbon offset project development. Its clients include industry and non-governmental associations, large private sector companies, and local, provincial and federal governments.

  • Instituto de Investigación Geológico y Energético

    Type: 
    Organisation
    Knowledge partner
    Country of registration:
    Ecuador
    Relation to CTCN:
    Network Member
    Knowledge Partner
    TA proponent

    IIGE is a research institute that promotes development, innovation and transmission of technology focused on energy efficiency and renewable energy. The institute aims to contribute to the sustainable development of the Ecuadorian society, through the implementation of energy efficient and energy renewable policies and projects.

  • Atlaspower, Unipessoal, Lda

    Type: 
    Organisation
    Country of registration:
    Portugal
    Relation to CTCN:
    Network Member
    Sector(s) of expertise:

    Atlaspower is a company established in 2013 by Vitor Ribeiro, after 30 years working on the power, environmental and chemical recovery sectors of the Portuguese and Spanish pulp and paper heavy industry. Atlaspower's main targets are:

    1. The development of power and energy efficiency projects, acting as IPP and/or ESCO, according to the circumstances, initially in the Iberian market, and specifically in Portugal, but the soonest extending this activity to Africa, beginning with Angola, Mozambique, Cape Verde, Guinea-Bissau and São Tomé e Principe; and 

  • Black liquor

    Type: 
    Technology
    Sectors:
    Objective:

    Black liquor gasification is an emerging commercial technology founded on decades of research and development. Its goal is to produce a combustible mixture of raw gases as well as separate out the inorganic pulping chemicals for recycling for the pulping process. The processes can take place at low, 600 degrees Celsius, or high temperatures around 1000 degrees Celsius.

  • Scaling up energy efficiency in tofu and tempe SMEs in Indonesia

    Type: 
    Publication
    Publication date:

    Background

    Tofu and tempe are fundamental to the Indonesian diet. Demand for these products is served by an industry of small and medium sized enterprises (SMEs) employing 285000 workers in 85000 businesses. Production practices are extremely energy inefficient and environmentally damaging. Enterprises use firewood resulting in a per-factory emissions average of 450 tons CO2/year and sector-wide emissions of 30 million tons.

  • Process for manufacturing acid-resistant biopolymer-lignin-membranes

    Type: 
    Product
    Technology:

    The invention is a process for manufacturing acid-resistant biopolymer-lignin-membranes from the liquor from cellulose extraction processes. Black liquor is dried in the first stage of the process and is finally pressed into form. Through treatment with acid the lignin membranes acquire their porous structure and become insoluble in water and resistant to acid. According to use the membranes can be cleaned with water to remove the acid portion. The resulting membranes let filtration processes be carried out effectively and inexpensively and can be used as encapsulating media.

  • Waste water treatment and Water resources management

    Type: 
    Product

    Lesico CleanTech is a pioneer in delivering sustainable technologies which recycle or minimize the volume of liquid waste primarily desalination rejected brine. The solutions not only help users comply with stringent regulation but result in substantial savings in real estate installation and operational costs.

  • Ecosan toilet

    Type: 
    Product

    The main principle of this toilet is the separation of solid and liquid waste which is then later used for generation of biogas.