Rotifers (Figure 1.9) and nematodes (Figure 1.10) are multicellular microscopic animals (metazoa) that also provide numerous benefits to the activated sludge process. In addition to these benefits provided by the ciliated protozoa, the metazoa burrow into floc particles.The burrowing action promotes acceptable bacterial activ-
ity for the degradation of substrates in the core of the floc particle by permitting the penetration of dissolved oxygen, nitrate (NO3-), substrates, and nutrients. Substrates are the carbon and energy sources used by bacteria for cellular growth and activity. With exceptions, substrates consist of carbonaceous, biochemical oxygen demand (cBOD) compounds and nitrogenous, biochemical oxygen demand (nBOD) compounds.
Was this article helpful?
Tired of Trying To Loose Weight And It Never Works or You Have To Starve Yourself Well Here's A Weight Loss Plan That takes Care of Your Weight Problem And You Can Still Eat. In This Book, You’ll Learn How To Lose Weight And Not Feel Hungry! In An Easy Step-By-Step Process That Enables You To Feel Good About Loosing Weight As Well As Feeling Good Because Your Stomach Is Still Full.