Soil

Bachema is in full compliance with all current Brazilian regulations. We are proud to offer our clients the most reliable results for soil and sediment analyses. Our analyses support the evaluation of projects for the recovery of impacted sites, environmental monitoring, and processes of divestment and acquisition of properties for future industrial and real estate projects, among others.

The following are some of the primary regulations to be considered for compliance:

  • CETESB Board Decision No. 256/2016/E, of Nov/22/2016, which approves the 2016 guiding levels for soil and groundwater in the State of São Paulo.
  • Brazilian standard ABNT NBR No. 10004/04, which establishes criteria for the classification of solid wastes in terms of their potential risks to the environment and human health.

All analyses are conducted following international methods and adaptations of standard analytical procedures for soil used by the Bachema Analytische Laboratorien in Switzerland.

We offer a full scope of physico-chemical analyses, including:

  • VOC - volatile organic compounds;
  • SVOC - semi-volatile organic compounds;
  • TPH - total petroleum hydrocarbons;
  • PAH - polycyclic aromatic hydrocarbons;
  • PCB - polychlorinated biphenyls;
  • organochlorine and organophosphate pesticides;
  • heavy metals;
  • salts and anions;
  • pH, among others.

Our laboratory is also fully capable to conduct treatability tests (bench- and pilot-scale), as per CETESB’s Board Decision No. DD38 of 2017, which must be followed in projects for the remediation of contaminated sites.


Waste Materials

According to current Brazilian regulations, all waste materials must be classified for suitable disposal, so as to ensure the optimization of costs and the preservation of the environment and of public health.

The proper destination of (solid, semi-solid and liquid) wastes is regulated by Law No. 12305 of August 2010, in line with the Brazilian National Policy on Solid Wastes.

This law created the National Policy on Solid Wastes, which defines guidelines to prevent and minimize waste generation. It establishes instruments for the suitable recycling and reuse of waste materials with economic value, as well as for the suitable destination of solid wastes that cannot be recycled or reused. This promotes the sustainable development of society.

Bachema has the expertise to conduct chemical analyses for the characterization of waste materials, as per Brazilian standard ABNT/NBR No. 10004. Waste characterization enables its classification in terms of potential risks to the environment and public health, in addition to its proper management.

The applicable regulations are listed next:

  • ABNT NBR No. 10004/04 – establishes criteria for the classification of solid wastes in terms of their potential risks to the environment and human health.
  • Law No. 12305, of August 2, 2010 – institutes the National Policy on Solid Wastes, establishing principles, goals and tools, guidelines for the integrated management of solid wastes (including hazardous wastes), the responsibilities of generators and the government, and applicable economic instruments.

Sampling

Bachema also offers waste sampling services that are certified by the General Coordination for Accreditation (CGCRE), as per the requirements of Brazilian standard ABNT NBR ISO/IEC No. 17025, for:

  • Liquid and solid industrial wastes.

Wastewater

The Brazilian environmental legislation defines standards for the discharge of industrial and domestic wastewater into the environment, both in water bodies and in the public collection system.

According to Brazilian standard ABNT NBR 9800/1987, industrial wastewaters are “liquid discharges from areas of industrial processing, including those originated from production processes and wash waters from operation areas and other sources that are known to be contaminated with products used or manufactured in an industrial site”.

Our laboratory is certified by the CGCRE, as per the requirements of Brazilian standard ANBT/NBR ISO/IEC 17025. We can conduct chemical analyses for the characterization of wastewater, so as to classify it in terms of its potential risks to the environment and public health, as per the following regulations:

  • Decree No. 8468, of Sep/08/1976, article 18 – establishes the conditions for the discharge of wastewater in water bodies;
  • Decree No. 8468, of Sep/08/1976, article 19A – establishes the conditions for the discharge of wastewater in public collection systems provided with treatment plants;
  • CONAMA Resolution No. 430, of May/13/2011 – establishes conditions, parameters, standards and guidelines for the management of wastewater discharges into water bodies, partially amending Resolution No. 357, of March 17, 2005.

Gas emissions

Volatile organic compounds (VOCs) are an important group of air pollutants. VOCs are commonly found in the atmosphere at ground level in all urban and industrial centers, as a result of human activities and biogenic processes.

Bachema uses gas chromatography with mass spectrometry (GC-MS) to conduct chemical analyses of VOCs in gas emission samples.

Sampling

Bachema also provides services for gas emission sampling. We use methodologies approved by the General Coordination for Accreditation (CGCRE), as per the requirements of Brazilian standard ABNT NBR ISO/IEC No. 17025, for:

  • water and wastewater treatment plants;
  • airborne volatiles in industrial environments, using adsorption filter.

Asbestos

In November 2017, the Brazilian Federal Supreme Court (STF) banned the extraction, processing, sale and distribution of asbestos in the country, forbidding the Brazilian states from passing regulations that allow its use.

Exposure to asbestos dust can cause carcinogenic diseases, and once in the human body asbestos is never eliminated. Risk is present primarily when the material is broken or cracked and the dust is released into the environment.

Asbestos can be found in various types of products, including:

  • tiles and water tanks;
  • automotive brake elements (linings and pads), joints, gaskets, clutch disc linings;
  • fabrics, special garments;
  • floorings, paints, ceilings, thermal insulation materials, etc.

The removal of construction debris containing asbestos (e.g.: tiles, water tanks) and the disposal of products such as brake elements or joints (as listed above) must be assessed for the definition of environmentally safe solutions.

Bachema has state-of-the-art equipment and trained professionals who can analyze, identify and quantify the various types of asbestos – such as chrysotile and amphibole (amosite, anthophyllite, tremolite, actinolite, crocidolite) – present in materials. We follow the methodology aproved by the CGCRE, as per the requirements of Brazilian standard ABNT NBR ISO/IEC 17025.

Sampling

Bachema also provides services to sample airborne asbestos. We follow methodologies approved by the General Coordination for Accreditation (CGCRE), as per Brazilian standard ABNT NBR ISO/IEC No. 17025, for:

  • Airborne asbestos sampling using specific filters.

Treatability Tests

In 2017, the São Paulo state environmental agency, CETESB, published its board decision DD No. 38/2017. Item 4.2.1.5 of this regulation made bench-scale and pilot-scale testing mandatory. Such tests are aimed at assessing the feasibility of a project and at establishing parameters for the design and operation of remediation techniques to be implemented in impacted areas.

Treatability tests can be conducted for water, soil, or a mix of both.

They are crucial in determining the most suitable injectate and the best conditions for its application, for the remediation of various contaminants. Treatability testing can help optimize the amount of injectate for more efficient full-scale results and the complete degradation of pollutants.

Various analytical techniques can be combined to track pollutant (VOC, SVOC, TPH, etc.) degradation, depending on the characteristics of the study area. This can provide a complete assessment of the system, to support the determination of cost estimates and of potential harmful effects.

Contact us for more information.