Central Association recruitment!
Guteng Environmental Protection Network > Water Treatment > Technical Topics > Text

The concept and main pollutants of food industry wastewater

来源: 作者: 阅读:108930 网友评论2 Updated: 2009-11-18 14:26 Source: Author: Read: 108,930 User Reviews 2

The food industry has a wide range of raw materials and a wide range of products. The amount and quality of discharged wastewater varies widely. The main pollutants in the wastewater are (1) solid substances floating in the wastewater, such as vegetable leaves, peels, minced meat, poultry feathers, etc .; (2) substances suspended in the wastewater are oil, protein, starch, colloidal substances, etc. 3) Acids, alkalis, salts, and sugars dissolved in wastewater: (4) silt and other organic substances entrained in raw materials; (5) pathogenic bacteria and so on. Food industry wastewater is characterized by high organic matter and suspended matter content, easy to spoil, and generally has no major toxicity. Its harm is mainly to make the water body eutrophic, which will cause the death of aquatic animals and fish, promote the odor of organic matter deposited on the bottom of the water, deteriorate the water quality and pollute the environment.

In addition to proper pretreatment according to water quality characteristics, the wastewater treatment in the food industry is generally suitable for biological treatment. If the quality of the effluent is very high or the organic matter content in the wastewater is high, a two-stage aeration tank, a two-stage biological filter, or a multi-stage biological turntable can be used. Or use two kinds of biological treatment device in combination, or use anaerobic-aerobic biological treatment system in series.

Disclaimer : This article is reproduced for the purpose of passing more information. If any source is wrongly marked or violates your legal rights, please contact the author with the proof of ownership, and we will correct and delete in time.

Use WeChat Scan to Add Guten Environmental Protection Network

Comments on " Concepts and Main Pollutants of Food Industry Wastewater "
1st floor clement 2012-06-06

Passing by

) 回复 Like ( 0 ) Reply

2F Pingxiang Tuobu Environmental Protection Technology

Industrial water treatment--iron-carbon micro-electrolytic filler The new iron-carbon micro-electrolytic filler TPFC produced by our company is aimed at the treatment of wastewater with high organic concentration, high toxicity, high chroma, and difficult to biochemical wastewater, which can greatly reduce the chroma and COD, increasing the B / C ratio means improving the biodegradability of wastewater; it can be widely used in the treatment and reuse of various industrial wastewater such as printing and dyeing, chemical industry, electroplating, circuit boards, pulp and paper, pharmaceuticals, wool washing, pesticides, alcohol, etc. engineering. (1) Pigments, dyes, printing and dyeing, leather wastewater: used for pretreatment, improve B / C ratio, remove COD and heavy metals, and have obvious decoloring effect. (2) Coking wastewater: pretreatment or advanced treatment, with obvious nitrogen removal effect, improved B / C ratio, good decolorization effect, simple operation, low investment and operation cost. (3) Electroplating, circuit board and beneficiation wastewater: used for pretreatment, breaking heavy metal complexes, increasing B / C ratio, replacing heavy metal ions, small amount of mud, simple operation and low cost. (4) Pesticide, pharmaceutical and chemical wastewater: used for pretreatment, removing S-containing heterocyclic compounds, cyanide-containing or antibiotics, glufosinate, nitrobenzene and other microorganisms toxic organic matter, and improving B / C ratio. (5) Electrophoresis coating wastewater: used for pretreatment to break the molecular structure of high molecular organic matter and improve the B / C ratio. (6) Papermaking wastewater: In-depth treatment of pulping wastewater, combined with Fenton's reagent, can further remove COD and chromaticity, and achieve first-level discharge or reuse standards. For more information, please call for details. Website: http://www.pxtop.cn Pingxiang Tuobu Environmental Protection Technology Co., Ltd. QQ: 492097675

) 回复 Like ( 0 ) Reply

mailbox: password: New User Registration

Netizen comments are for their personal opinions only, and do not indicate that Gutenberg agrees with their views or confirms their description.

Soil Pollution Control Action Plan
Soil Pollution Control Action Plan

On May 31, after undergoing extensive solicitation of opinions, full investigation and demonstration, repeated revision and improvement ...

2015 China Water Treatment Engineering Salon Phase 2
2015 China Water Treatment Engineering Salon Phase 2

The “2015…” will be held on September 11, 2015 (Friday)

2015 China Water Treatment Engineering Salon
2015 China Water Treatment Engineering Salon

In order to better understand the current Chinese water treatment industry, strengthen the top among the industry's top ...