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"Normal hexane extract substances" are mainly considered indicators of oils, including animal and vegetable fats such as salad oil, as well as mineral oils like oils. In particular, in food manufacturing and processing plants, as well as in cosmetics and semiconductor manufacturing plants, wastewater containing a high concentration of "normal hexane extract substances" is generated. If discharged without treatment, it can cause blockages in pipes, corrosion, and unpleasant odors, making proper treatment essential. This document provides a brief summary of commonly used methods for treating normal hexane extract substances. It is a resource that clearly outlines the "principles" and "advantages and disadvantages" of each method. Please feel free to download and review it.

Factory wastewater and boiler blowdown water often have acidic or alkaline pH values, making it impossible to discharge them as they are. The process of adjusting such wastewater to a neutral range (around pH 7) is called "pH neutralization treatment." I believe that in your factories, you are also conducting pH neutralization treatment for wastewater such as waste acids and waste alkalis, as well as for coagulation reactions. This document introduces the various types of pH neutralization treatment and the mechanisms by which pH neutralization is carried out. Please feel free to download and take a look.

A "specific facility" refers to facilities installed in factories or business establishments that discharge wastewater or waste liquids, as defined by government ordinances or regulations. (1) Those containing substances that may harm human health (hazardous substances) (2) Those that may pose a risk of harm to the living environment (living environment items) Among the ordinances related to water quality regulations, there are also ordinances that differ by region. Here, we introduce the laws and ordinance regulations applicable to business establishments in Shiga Prefecture. 【Water Quality Regulation Laws and Ordinances in Shiga Prefecture】 - Water Pollution Prevention Act - Ordinance establishing discharge standards based on Article 3, Paragraph 3 of the Water Pollution Prevention Act (additional ordinance) - Shiga Prefecture Pollution Prevention Ordinance (Pollution Prevention Ordinance) - Ordinance concerning the prevention of eutrophication of Lake Biwa in Shiga Prefecture (NP Ordinance) - Lake and Marsh Law - Sewerage Law Our company responds to inquiries regarding the Water Pollution Prevention Act, Shiga Prefecture Pollution Prevention Ordinance, NP Ordinance, etc. We can also support you from planning and drafting to execution on how to address wastewater issues.