PROCESS Water, Pure Water & Wastewater Analysis for Agriculutre


Process water, pure water, and wastewater analysis are crucial for agriculture production as they ensure the quality and safety of water used in various agricultural processes. Process water analysis helps monitor the presence of contaminants, such as pesticides, heavy metals, or microbial pathogens, which can affect crop growth and contaminate agricultural products. Pure water analysis ensures that water used for irrigation, crop spraying, or livestock watering is free from impurities that could harm plants or animals. It helps maintain optimal nutrient uptake, prevent soil salinization, and ensure the health and productivity of livestock. Wastewater analysis is vital to assess the potential environmental impact of agricultural activities. By monitoring wastewater quality, including nutrient levels and potential pollutants, farmers can implement appropriate treatment measures, minimize water pollution, and protect surrounding ecosystems. 

Monitoring total organic carbon (TOC) in the agricultural production process is important for several reasons. TOC analysis provides valuable insights into the organic matter content in soil, irrigation water, and fertilizers, which directly impacts crop health and productivity. By monitoring TOC levels, farmers can assess the quality and fertility of their soil, ensuring optimal nutrient availability for plant growth. High TOC levels may indicate excessive organic matter accumulation, leading to nutrient imbalances or soil degradation. On the other hand, low TOC levels may suggest inadequate organic matter and nutrient content, compromising soil structure and fertility. Monitoring TOC helps farmers make informed decisions regarding soil management practices, such as organic amendments or cover cropping, to maintain a balanced and healthy soil ecosystem. Additionally, TOC analysis can assist in assessing the effectiveness of composting or organic waste management practices, enabling farmers to optimize the use of organic resources and reduce environmental impact.

Our LAR™ online water analyzers are crucial tools for the agriculture industry to optimize processes, ensure regulatory compliance, detect contaminants, manage water resources efficiently, maintain process safety, and plan preventive maintenance. These analyzers provide real-time data that enables informed decision-making and helps chemical manufacturers achieve their production goals effectively.


In agriculture production, process water is used for a variety of purposes throughout the farming and cultivation processes. Here are some common uses of process water in agriculture:

  • Irrigation: Process water is essential for irrigating crops and supplying the necessary moisture for plant growth. It can be sourced from various water bodies such as rivers, lakes, reservoirs, or underground wells. Process water is distributed through irrigation systems like sprinklers, drip irrigation, or flood irrigation, ensuring that crops receive the required amount of water for optimal growth and yield.
  • Field Preparation: Before planting, process water is often used to prepare fields for cultivation. It can be used for activities such as soil tillage, land leveling, and seedbed preparation. Water helps soften the soil, making it easier to work with machinery and ensuring uniform conditions for planting.
  • Seed Treatment: Some crops require seed treatment to enhance germination rates and protect against pests and diseases. Process water is used for seed soaking, coating, or applying chemical treatments to improve seed quality and increase the likelihood of successful germination.
  • Washing and Cleaning: Process water is utilized for washing fruits, vegetables, and other agricultural produce. It helps remove dirt, debris, and residual chemicals from the harvested crops, ensuring cleanliness and improving food safety. Process water is also used for cleaning equipment, tools, and storage containers to maintain hygiene standards.
  • Livestock Watering: In agricultural settings involving animal husbandry, process water is used to provide drinking water for livestock. Clean and accessible water sources are vital for animal health, ensuring proper hydration, and supporting normal physiological functions.
  • Pesticide and Fertilizer Application: Process water is commonly used as a carrier for applying pesticides and fertilizers to crops. It acts as a medium to dilute and distribute these agricultural inputs effectively, ensuring proper coverage and uptake by plants.
  • Processing and Packaging: In agricultural processing facilities, process water is utilized for various stages of food processing and packaging. It may be used for washing, sorting, cooling, or packaging agricultural products before distribution.


Agriculture production utilizes pure water for specific applications that require high water quality standards. Here are some common uses of pure water in agriculture:

  • Seed Germination and Hydroponics: Pure water is essential for seed germination and hydroponic systems, where plants are grown without soil. Seeds require clean and uncontaminated water to sprout and establish healthy root systems. Similarly, in hydroponics, plants rely solely on nutrient-rich water for growth, making the purity of the water crucial to avoid nutrient imbalances or the introduction of harmful substances.
  • Greenhouse Irrigation: Greenhouses provide controlled environments for plant growth. Pure water is used for irrigation in greenhouses to ensure that plants receive clean and pH-balanced water, free from impurities that can hinder nutrient uptake or damage delicate root systems. The purity of the water is especially important when using hydroponic or nutrient film techniques where plants are directly exposed to the water solution.
  • Livestock Watering: Pure water is also crucial for livestock watering, ensuring the health and well-being of animals. Clean water helps prevent the spread of waterborne diseases, ensures proper hydration, and supports normal physiological functions in animals. Pure water is particularly important for dairy cows, poultry, and other livestock where water quality directly impacts productivity and overall animal health.
  • Chemical Mixing and Dilution: In agricultural practices that involve the use of chemicals such as pesticides or fertilizers, pure water is necessary for proper mixing, dilution, and preparation of the chemical solutions. Water purity is crucial to ensure the accurate concentration and effectiveness of these agrochemicals, minimizing the risk of crop damage, or unintended environmental impacts.
  • Laboratory Analysis: Pure water is used extensively in agricultural laboratories for various analyses, such as soil testing, plant tissue analysis, or water quality assessments. Laboratory-grade water is required to ensure accurate and reliable results, free from contaminants that could interfere with the analytical processes or skew the measurements.


Agriculture production can utilize wastewater in several ways, depending on its quality and suitability for specific purposes. Here are some common ways in which agriculture production uses wastewater:

  • Irrigation: Wastewater, after proper treatment and ensuring it meets quality standards, can be used for irrigation in agricultural fields. This practice is known as wastewater or reclaimed water irrigation. Treated wastewater can provide a valuable water resource for irrigation, especially in regions facing water scarcity. It can help supplement freshwater supplies and reduce the reliance on freshwater sources for crop irrigation.
  • Nutrient Source: Wastewater often contains valuable nutrients, such as nitrogen, phosphorus, and potassium, which are essential for plant growth. Through appropriate treatment and nutrient management, wastewater can be used as a nutrient source for crops. Nutrient-rich wastewater can provide a sustainable and cost-effective alternative to synthetic fertilizers, reducing the need for additional nutrient inputs.
  • Aquaculture and Fish Farming: Wastewater can be utilized in aquaculture and fish farming systems. Nutrients present in wastewater can support the growth of aquatic organisms, such as fish or shrimp, when properly managed. Wastewater can serve as a nutrient-rich medium for aquaculture operations, promoting the growth of aquatic plants or serving as a food source for fish.
  • Soil Amendment and Organic Matter: Wastewater, particularly if it has undergone appropriate treatment processes, can be used as a soil amendment or a source of organic matter. It can contribute to improving soil fertility, enhancing soil structure, and increasing water-holding capacity. By applying treated wastewater to agricultural land, farmers can enrich the soil with organic matter and enhance its overall productivity.
  • Biomass Production: Certain crops, such as energy crops or specific aquatic plants, can be cultivated using wastewater. These crops can utilize the nutrients present in wastewater for growth, which can then be harvested for various purposes, including bioenergy production or bioremediation.


Monitoring total organic carbon (TOC) in water is important in agriculture because it provides valuable insights into the quality and composition of water used for various agricultural purposes. TOC analysis helps assess the levels of organic matter, including dissolved organic compounds and carbon-based substances, present in water sources used for irrigation, livestock watering, and other agricultural activities. By monitoring TOC levels, farmers can evaluate the potential presence of contaminants, such as pesticides, fertilizers, or pollutants, which can adversely affect crop health, soil quality, and overall agricultural productivity. High TOC levels may indicate the presence of excessive organic matter that can lead to nutrient imbalances, promote the growth of harmful microbes, or impact water permeability in the soil. On the other hand, low TOC levels may suggest a lack of essential organic nutrients required for optimal plant growth. Monitoring TOC in water allows farmers to make informed decisions about water treatment, proper nutrient management, and sustainable irrigation practices, ensuring the efficient and responsible use of water resources and supporting the production of high-quality, healthy crops.

From an ecologic and economic point of view, the reuse of water is becoming of increasing importance within processing operations in the agricultural production industry as the recycled water reduces costs as well as reducing the demands made on the water supply. To ensure water quality several parameters have been defined such as total organic carbon (TOC) and chemical oxygen demand (COD).

Different Applications

  • In crop production water is used for irrigation purposes.
  • In livestock farming water is needed for keeping livestock (e.g. drinking), the hygiene of animals and for the cleaning of equipment (e.g. milking equipment).
  • In the beverage industry water is often used as an ingredient as well as cleaning agent.

Water Analysis Matters

  • In crop production (e.g. farming)
  • For cleaning and sanitation
  • As an ingredient or component of a product
  • In processing operations (e.g. cooling, heating)


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