Solid waste management

It is necessary to distinguish various forms of carbon such as organic carbon (TOC), elemental carbon (TEC) (such as graphite and coal), total inorganic carbon (TIC), and total carbon (TC) in waste management samples. The choice of landfill or incineration for solid waste mainly depends on the amount of biodegradable TOC, and is not related to the amount of non biodegradable TEC (ROC). PrimacsATC100 can be perfectly applied to analysis in this field.

Mud and sediment

The analysis of nitrogen and carbon is crucial for controlling pollutants in waste samples such as sludge and sediment. Ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, and other nitrogen-containing compounds can all provide nutritional sources and cause problems in the reproduction of aquatic organisms. Organic carbon in waste, sludge, and sediment exists in various forms. Due to the diversity of possible organic carbon compounds, it is impossible to quantitatively determine all individual organic components from natural and anthropogenic sources. Therefore, it is necessary to rely on the measurement of the total amount. One of them is total organic carbon (TOC). This parameter can be used to evaluate the suitability of landfill disposal. PrimacsSNC100 can provide rapid and accurate determination of nitrogen and carbon in this field.

Directly measuring TOC is a non trivial analysis

Usually, the total carbon content is measured and then subtracted from non organic carbon sources. In addition to organic carbon, inorganic carbon also exists in soil and sediment, usually in the form of carbonates. The two most common sources of carbonates in soil and sediment are the minerals calcite and dolomite. The corresponding ontology parameter Total Inorganic Carbon (TIC) includes these minerals as well as other carbonate derivatives such as carbonic acid and bicarbonate. Inorganic carbon is different from organic carbon because it is not an available carbon form in biological systems, meaning it is not biologically utilizable.

Usually, distinguishing between TOC and TIC alone is not enough. Elemental carbon (EC) is another common source of carbon, and it is also not biologically utilizable.Especially in solid waste, but in other applications, measuring this third type of carbon alone can more accurately determine the biologically available carbon content, thereby determining carbon sources related to the environment.

Determine different forms of carbon using temperature gradients according to DIN19539 standard method

For example, when evaluating solid waste, it may be necessary to separately determine EC, as elemental carbon does not have bioavailability. For this purpose, the temperature gradient method is used: TOC is measured at 400 ℃, ROC is measured between 400-600 ℃, and TIC is measured between 600-900 ℃.

Measure TOC400, (EC), and (TIC900) according to DIN19539

PrimacsATC100-E, PrimacsATC100-IC-E, PrimacsSNC100-E, and PrimacsSNC100-IC-E can be used to analyze total organic carbon (TOC400400), elemental carbon (EC), and total inorganic carbon (TIC900) according to standard method A and recommended method B in the appendix of DIN19539.

The samples were burned with oxygen using TOC400, ROC, and TIC900 at 400 ℃, 600 ℃, and 900 ℃, respectively.

Measure TOC400, (EC), and (TIC900) according to DIN19539 standard method A

PrimacsATC100-E, PrimacsATC100-IC-E, PrimacsSNC100-E, and PrimacsSNC100-IC-E can be used to analyze total organic carbon (TOC400400), elemental carbon (EC), and total inorganic carbon (TIC900) according to DIN19539 standard.

The samples were burned with oxygen using TOC400, ROC, and TIC900 at 400 ℃, 600 ℃, and 900 ℃, respectively.

During the combustion process, the generated CO2 is guided by an IR detector through an oxygen carrier gas. The IR detector continuously measures and calculates the CO2 concentration of TOC400, EC, and TIC900 in the sample.

Measure TOC400, (EC), and (TIC900) according to DIN19539 standard method B

PrimacsATC100-E, PrimacsATC100-IC-E, PrimacsSNC100-E, PrimacsSNC100-IC-E are used to analyze the DIN19539 standard for total organic carbon (TOC400), residual organic carbon (ROC), and total inorganic carbon (TIC900) according to the methods in Appendix B. Firstly, burn the sample with oxygen at 400 ℃ to burn the TOC400 of the sample. Then, in the "flushing" stage, inert gas is used to replace all oxygen to create an environment for pyrolysis. In this anaerobic environment, the sample is heated to 900 ℃ and its TIC900 decomposes. Then, while maintaining at 900 ℃, replace nitrogen with oxygen and burn the EC of the sample.

During the combustion process, the generated CO2 is sent to the IR detector by an oxygen carrier gas. The IR detector continuously measures the carbon dioxide concentration of TOC400, TIC900, and EC content in the sample. The instrument is equipped with a 100 bit fully automatic sampler. Soil samples are directly weighed in a crucible and placed on the sampler to perform unmanned fully automatic analysis of morphological carbon.

Model Name: Solid Waste Sludge Organic Matter Elemental Carbon Automatic Analyzer ●

Analysis Project: Total Carbon/Organic Carbon/Inorganic Carbon/Elemental Carbon ●

Method: TC was detected using high-temperature combustion NDIR; TIC adopts the acidification gas blowing method; TIC-TEC-TOC analysis adopts combustion testing in different temperature distribution zones ●

Analysis scope: Carbon: 0.01-500mg Absolute value of C

● Measurement range: 0.01-100%*

● Detection limit:<

0.01% (< 100 ppm) ●

Sample weight: maximum 3g or liquid sample volume 2ml ●

Precision: Carbon<1% RSD ●

Data processing: Area calculation (multi-point linear regression), automatic input of balance interface data, storage of raw data and connection to LIMS ●

Automatic sampler: 100 sample grade automatic sampler ●

Injection method: Vertical injection system from bottom to top ●

Instrument features: Balance interface, automatic data input interface ●

Backblowing system can prevent interference from environmental factors and is used for detecting low content samples ●

Reusable crucible ●

Built in display, showing parameters such as temperature, flow rate, pressure, and instrument operating status ●

The three-stage dehydration system completely eliminates the interference of moisture and reduces operating costs Can directly analyze liquid samples ●